1.7 Carat Lab Grown Diamond Prices Comparison
As of February 2026, the average price of a 1.7 carat lab grown diamond is $915.1.7 carat diamonds can cost anywhere from $305 to $25,446 depending on shape, color, clarity, and other factors.In the last month, prices for these diamonds are down 2.3%.Compare 15,771 verified listings across 12 retailers in the tables below.
1.7 Carat Lab Grown Diamond Market Overview
CaratRadar currently tracks 15,771 verified 1.7-carat lab grown diamonds listed across 12 online retailers. Prices in this segment range from $305 to $25,446, with an average asking price of $915 and a median of $670.
The price spread of $25,141 (98.8% 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.
15,771 diamonds tracked in this segment
Price range: $305 to $25,446
Average price: $915
Median price: $670
Available across 12 retailers
Savings potential: up to 98.8%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
15,771
$305
$915
$670
$25,446
Price History
Price Comparison Matrix
1.7 Carat Lab Grown Diamond Prices by Shape
Shape-level averages for this carat and type. Open each shape page for full market detail.
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 80.3%1.65ct | Antique | E | VVS2 | Ideal
From $648
Compare at $3,290
GCALSave 65%1.66ct | Antique | F | VVS2 | Very Good
From $2,336
Compare at $6,670
IGISave 84.7%1.66ct | Antique | D | IF | Ideal
From $1,091
Compare at $7,140
IGISave 83.2%1.66ct | Antique | D | VVS1 | Ideal
From $797
Compare at $4,740
GIASave 84%1.68ct | Antique | E | VS1 | Ideal
From $1,041
Compare at $6,500
GIASave 78.8%1.7ct | Antique | E | VVS2 | Ideal
From $1,114
Compare at $5,250
IGISave 73.1%1.72ct | Antique | E | VVS2 | Ideal
From $986
Compare at $3,670
IGISave 82.1%1.72ct | Antique | D | VVS2 | Ideal
From $697
Compare at $3,900
IGISave 83.4%1.74ct | Antique | D | VVS1 | Ideal
From $825
Compare at $4,970
IGISave 72.1%1.65ct | Asscher | F | VVS2 | Very Good
From $589
Compare at $2,110
IGISave 52.2%1.65ct | Asscher | F | VS1 | Very Good
From $458
Compare at $958
IGISave 77.4%1.65ct | Asscher | G | SI1 | Very Good
From $436
Compare at $1,930
IGISave 72.8%1.65ct | Asscher | G | VS1 | Very Good
From $503
Compare at $1,850
IGISave 72.1%1.65ct | Asscher | F | VS1 | Very Good
From $568
Compare at $2,040
IGISave 72.7%1.65ct | Asscher | G | SI1 | Ideal
From $551
Compare at $2,020
IGISave 52.2%1.65ct | Asscher | F | VVS2 | Very Good
From $478
Compare at $1,000
IGISave 77.7%1.65ct | Asscher | D | VVS2 | Ideal
From $636
Compare at $2,850
IGISave 76%1.65ct | Asscher | D | VS1 | Ideal
From $733
Compare at $3,060
IGISave 16%1.65ct | Asscher | D | VVS2 | Very Good
From $517
Compare at $616
IGISave 69.9%1.65ct | Asscher | D | VS1 | Very Good
From $836
Compare at $2,780
IGISave 84.5%1.65ct | Asscher | E | VVS1 | Ideal
From $517
Compare at $3,330
IGISave 81.1%1.65ct | Asscher | D | VVS2 | Ideal
From $520
Compare at $2,750
IGISave 56.8%1.65ct | Asscher | E | VS1 | Excellent
From $833
Compare at $1,930
IGISave 84.2%1.65ct | Asscher | D | IF | Ideal
From $890
Compare at $5,640
IGISave 61.8%1.65ct | Asscher | F | VVS2 | Excellent
From $650
Compare at $1,704
IGISave 69%1.65ct | Asscher | E | SI1 | Ideal
From $620
Compare at $2,000
IGISave 72.9%1.66ct | Asscher | D | VS1 | Excellent
From $669
Compare at $2,470
IGISave 75.8%1.66ct | Asscher | E | VS1 | Ideal
From $707
Compare at $2,920
IGISave 80.1%1.66ct | Asscher | D | VVS1 | Ideal
From $701
Compare at $3,520
IGISave 82.7%1.66ct | Asscher | E | VVS2 | Ideal
From $509
Compare at $2,940
IGISave 16.2%1.66ct | Asscher | D | VVS2 | Very Good
From $519
Compare at $619
GIASave 81.5%1.66ct | Asscher | D | VVS2 | Excellent
From $961
Compare at $5,180
IGISave 59.5%1.66ct | Asscher | G | VS1 | Very Good
From $560
Compare at $1,383
IGISave 79.3%1.66ct | Asscher | E | VVS1 | Ideal
From $695
Compare at $3,360
IGISave 82.8%1.66ct | Asscher | D | VVS2 | Ideal
From $529
Compare at $3,070
IGISave 80.4%1.66ct | Asscher | F | VVS2 | Ideal
From $519
Compare at $2,650
IGISave 80.2%1.66ct | Asscher | E | VVS1 | Ideal
From $664
Compare at $3,360
IGISave 13.4%1.66ct | Asscher | D | VVS2 | Excellent
From $495
Compare at $572
IGISave 75.3%1.66ct | Asscher | D | VS1 | Ideal
From $482
Compare at $1,950
IGISave 67.9%1.66ct | Asscher | D | VVS1 | Ideal
From $589
Compare at $1,837
IGISave 77.7%1.66ct | Asscher | E | VS1 | Ideal
From $518
Compare at $2,320
IGISave 74.9%1.66ct | Asscher | E | VS1 | Ideal
From $628
Compare at $2,500
IGISave 80.5%1.66ct | Asscher | F | VVS2 | Ideal
From $517
Compare at $2,650
IGISave 80.5%1.66ct | Asscher | F | VVS2 | Ideal
From $517
Compare at $2,650
GIASave 79.8%1.66ct | Asscher | D | VS1 | Ideal
From $907
Compare at $4,490
IGISave 13.5%1.66ct | Asscher | G | VVS2 | Excellent
From $1,245
Compare at $1,440
IGISave 72.5%1.66ct | Asscher | F | VS2 | Very Good
From $547
Compare at $1,990
GIASave 83.8%1.67ct | Asscher | E | VVS1 | Excellent
From $992
Compare at $6,130
IGISave 57.8%1.67ct | Asscher | D | VS2 | Excellent
From $793
Compare at $1,880
IGISave 83.3%1.67ct | Asscher | E | VVS2 | Very Good
From $495
Compare at $2,960
Entry pricing in this category starts around $305.
What to Know When Shopping for 1.7 Carat Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $25,141 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 $670 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.
Frequently Asked Questions
We currently track 15,771 comparable stones in this segment. Prices start around $305 and go up to $25,446.
Based on the latest market data, the average asking price is about $915 with a median around $670.
The observed spread is roughly $25,141 across tracked listings, which is about 98.8% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $670, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 12 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 $25,141 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.
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