1.7 Carat Round Lab Grown Diamond Prices Comparison
As of May 2026, 1.7 carat round lab grown diamonds usually range from $266 to $7,124, with an average price of $1,253.In the last month, prices for these diamonds are down 3%.Compare 5,382 verified listings across 14 retailers tracked by CaratRadar.
1.7 Carat Round Lab Grown Diamond Market Overview
CaratRadar currently tracks 5,382 verified 1.7-carat round lab grown diamonds listed across 14 online retailers. Prices in this segment range from $266 to $7,124, with an average asking price of $1,253 and a median of $1,106.
The price spread of $6,858 (96.3% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
5,382 diamonds tracked in this segment
Price range: $266 to $7,124
Average price: $1,253
Median price: $1,106
Available across 14 retailers
Savings potential: up to 96.3%
Price Range Overview
As of May 28, 2026Real market range for this carat, shape, and diamond type.
5,382
$266
$1,253
$1,106
$7,124
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 77.6%IGI | 1.7ct | Round | F | SI1 | Ideal
From $267
Compare at $1,190
Save 70.9%IGI | 1.73ct | Round | G | VS2 | Ideal
From $312
Compare at $1,072
Save 49.4%IGI | 1.7ct | Round | F | SI1 | Excellent
From $316
Compare at $625
Save 75%IGI | 1.74ct | Round | E | VS2 | Ideal
From $322
Compare at $1,290
Save 79%IGI | 1.7ct | Round | E | VS2 | Excellent
From $322
Compare at $1,530
Save 75.8%IGI | 1.7ct | Round | E | VS2 | Excellent
From $322
Compare at $1,330
Save 63.8%IGI | 1.7ct | Round | FANCY | SI1 | Good
From $324
Compare at $895
Save 79.5%IGI | 1.7ct | Round | F | VS1 | Ideal
From $326
Compare at $1,590
Save 77%IGI | 1.72ct | Round | E | VS2 | Excellent
From $326
Compare at $1,420
Save 63.8%IGI | 1.72ct | Round | FANCY | SI1 | Ideal
From $328
Compare at $905
Save 70.9%IGI | 1.73ct | Round | E | VS2 | Ideal
From $328
Compare at $1,127
Save 70.9%IGI | 1.73ct | Round | E | VS2 | Ideal
From $328
Compare at $1,127
Save 70.9%IGI | 1.74ct | Round | F | VS2 | Ideal
From $330
Compare at $1,133
Save 61.2%IGI | 1.72ct | Round | D | VS2 | Ideal
From $330
Compare at $851
Save 77.1%IGI | 1.7ct | Round | D | VS2 | Excellent
From $330
Compare at $1,440
Save 79.8%IGI | 1.74ct | Round | E | VS2 | Excellent
From $330
Compare at $1,630
Save 79.5%IGI | 1.73ct | Round | F | VS1 | Ideal
From $332
Compare at $1,620
Save 78.4%IGI | 1.73ct | Round | F | VS1 | Excellent
From $332
Compare at $1,540
Save 62.7%IGI | 1.7ct | Round | FANCY | VS1 | Very Good
From $334
Compare at $895
Save 70.9%IGI | 1.7ct | Round | E | VS1 | Ideal
From $334
Compare at $1,148
Save 79.9%IGI | 1.7ct | Round | E | VS1 | Excellent
From $334
Compare at $1,660
Save 68.9%IGI | 1.8ct | Round | F | VVS2 | Excellent
From $335
Compare at $1,077
Save 62.7%IGI | 1.71ct | Round | FANCY | VS1 | Good
From $336
Compare at $900
Save 70.9%IGI | 1.78ct | Round | E | VS2 | Ideal
From $337
Compare at $1,159
Save 61.2%IGI | 1.7ct | Round | G | VS1 | Excellent
From $337
Compare at $869
Save 78.3%IGI | 1.74ct | Round | D | VS2 | Excellent
From $337
Compare at $1,550
Save 71%IGI | 1.72ct | Round | E | VS1 | Ideal
From $337
Compare at $1,161
Save 71%IGI | 1.72ct | Round | D | VS1 | Ideal
From $337
Compare at $1,161
Save 63.9%IGI | 1.75ct | Round | F | VS1 | Ideal
From $338
Compare at $935
Save 78.9%IGI | 1.79ct | Round | E | VS2 | Ideal
From $339
Compare at $1,610
Save 79.6%IGI | 1.73ct | Round | D | VS2 | Excellent
From $340
Compare at $1,670
Save 79.1%IGI | 1.75ct | Round | D | VS2 | Excellent
From $340
Compare at $1,630
Save 70.9%IGI | 1.73ct | Round | E | VS1 | Ideal
From $340
Compare at $1,168
Save 77%IGI | 1.74ct | Round | D | VS2 | Ideal
From $341
Compare at $1,480
Save 71.4%IGI | 1.75ct | Round | F | VS2 | Ideal
From $342
Compare at $1,195
Save 76.1%IGI | 1.79ct | Round | E | VS1 | Excellent
From $342
Compare at $1,430
Save 79.4%IGI | 1.79ct | Round | D | VS2 | Excellent
From $342
Compare at $1,660
Save 79.4%IGI | 1.73ct | Round | D | VS1 | Excellent
From $342
Compare at $1,660
Save 78.2%IGI | 1.74ct | Round | H | VVS2 | Ideal
From $342
Compare at $1,570
Save 80%IGI | 1.77ct | Round | D | VS2 | Excellent
From $342
Compare at $1,710
Save 64.6%IGI | 1.8ct | Round | E | VS1 | Excellent
From $342
Compare at $965
Save 65.2%IGI | 1.8ct | Round | F | VS1 | Excellent
From $342
Compare at $983
Save 76.1%IGI | 1.79ct | Round | E | VS1 | Excellent
From $342
Compare at $1,430
Save 72.9%IGI | 1.71ct | Round | E | VS2 | Ideal
From $344
Compare at $1,270
Save 78.5%IGI | 1.8ct | Round | D | VS2 | Excellent
From $344
Compare at $1,600
Save 78.1%IGI | 1.71ct | Round | D | VS1 | Excellent
From $344
Compare at $1,570
Save 79.4%IGI | 1.8ct | Round | D | VS2 | Excellent
From $344
Compare at $1,670
Save 72.1%IGI | 1.7ct | Round | D | SI1 | Ideal
From $346
Compare at $1,240
Save 78.1%IGI | 1.72ct | Round | D | VS1 | Excellent
From $346
Compare at $1,580
Save 71.4%IGI | 1.79ct | Round | D | VS1 | Excellent
From $346
Compare at $1,208
Entry pricing in this category starts around $266.
What to Know When Shopping for 1.7 Carat Round Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $6,858 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $1,106 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Round brilliants command a premium due to higher rough waste during cutting. If budget matters, consider oval or cushion shapes for similar visual size.
Frequently Asked Questions
We currently track 5,382 comparable stones in this segment. Prices start around $266 and go up to $7,124.
Based on the latest market data, the average asking price is about $1,253 with a median around $1,106.
The observed spread is roughly $6,858 across tracked listings, which is about 96.3% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $1,253. The median price is $1,106, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
We currently track this stone category across 14 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $6,858 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
1.6 Carat Round Lab Grown Diamond Prices
1.5 Carat Round Lab Grown Diamond Prices
1.4 Carat Round Lab Grown Diamond Prices
1.8 Carat Round Lab Grown Diamond Prices
1.3 Carat Round Lab Grown Diamond Prices
1.9 Carat Round Lab Grown Diamond Prices
1.2 Carat Round Lab Grown Diamond Prices
1.7 Carat Oval Lab Grown Diamond Prices
1.7 Carat Emerald Lab Grown Diamond Prices
1.7 Carat Radiant Lab Grown Diamond Prices
1.7 Carat Pear Lab Grown Diamond Prices
1.7 Carat Princess Lab Grown Diamond Prices
Tracking Lab Grown inventory for 1.7 carat Round diamonds.