1.7 Carat Radiant Lab Grown Diamond Prices Comparison
As of February 2026, 1.7 carat radiant lab grown diamonds usually range from $328 to $6,110, with an average price of $795.In the last month, prices for these diamonds are down 4.2%.Compare 1,728 verified listings across 10 retailers tracked by CaratRadar.
1.7 Carat Radiant Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,728 verified 1.7-carat radiant lab grown diamonds listed across 10 online retailers. Prices in this segment range from $328 to $6,110, with an average asking price of $795 and a median of $611.
The price spread of $5,782 (94.6% 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.
1,728 diamonds tracked in this segment
Price range: $328 to $6,110
Average price: $795
Median price: $611
Available across 10 retailers
Savings potential: up to 94.6%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,728
$328
$795
$611
$6,110
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 79.2%1.65ct | Radiant | F | VS1 | Ideal
From $634
Compare at $3,051
IGISave 58.3%1.65ct | Radiant | G | VVS2 | Ideal
From $634
Compare at $1,520
IGISave 75.5%1.65ct | Radiant | E | SI1 | Very Good
From $490
Compare at $2,000
IGISave 30.4%1.65ct | Radiant | H | VS1 | Excellent
From $880
Compare at $1,264
IGISave 77.4%1.65ct | Radiant | E | VVS2 | Excellent
From $625
Compare at $2,770
IGISave 81.8%1.65ct | Radiant | D | VVS2 | Ideal
From $604
Compare at $3,320
IGISave 71.6%1.65ct | Radiant | F | VVS2 | Very Good
From $637
Compare at $2,240
IGISave 78.8%1.65ct | Radiant | F | VS1 | Ideal
From $478
Compare at $2,250
IGISave 81.3%1.65ct | Radiant | F | VS1 | Excellent
From $452
Compare at $2,420
GIASave 79.4%1.65ct | Radiant | D | IF | Excellent
From $1,950
Compare at $9,450
GIASave 69.4%1.65ct | Radiant | F | VVS2 | Excellent
From $873
Compare at $2,850
GIASave 31.6%1.65ct | Radiant | F | VVS2 | Excellent
From $1,139
Compare at $1,664
IGISave 77.8%1.65ct | Radiant | H | VS1 | Ideal
From $521
Compare at $2,350
IGISave 54.5%1.65ct | Radiant | F | VS2 | Ideal
From $632
Compare at $1,388
IGISave 73.9%1.65ct | Radiant | F | VS1 | Excellent
From $524
Compare at $2,010
IGISave 72.5%1.65ct | Radiant | G | VVS2 | Very Good
From $551
Compare at $2,000
IGISave 59.8%1.65ct | Radiant | E | VS1 | Very Good
From $752
Compare at $1,871
IGISave 60.7%1.65ct | Radiant | E | VS2 | Very Good
From $640
Compare at $1,630
IGISave 45%1.65ct | Radiant | F | VS1 | Ideal
From $609
Compare at $1,107
IGISave 81.3%1.65ct | Radiant | F | VS1 | Ideal
From $452
Compare at $2,420
IGISave 26%1.65ct | Radiant | D | VS2 | Very Good
From $483
Compare at $653
IGISave 72.9%1.65ct | Radiant | G | VS1 | Very Good
From $483
Compare at $1,780
IGISave 44.9%1.65ct | Radiant | H | VVS2 | Very Good
From $638
Compare at $1,157
IGISave 81.6%1.65ct | Radiant | E | VVS2 | Ideal
From $505
Compare at $2,750
IGISave 69.3%1.65ct | Radiant | F | VVS2 | Ideal
From $630
Compare at $2,050
IGISave 73.5%1.65ct | Radiant | D | VS1 | Ideal
From $735
Compare at $2,770
IGISave 73.5%1.65ct | Radiant | D | VS1 | Ideal
From $735
Compare at $2,770
IGISave 78.8%1.65ct | Radiant | E | VVS1 | Ideal
From $478
Compare at $2,250
IGISave 68.4%1.65ct | Radiant | E | VVS2 | Ideal
From $505
Compare at $1,600
IGISave 68.4%1.65ct | Radiant | E | VVS2 | Ideal
From $505
Compare at $1,600
IGISave 68.4%1.65ct | Radiant | E | VVS2 | Ideal
From $505
Compare at $1,600
IGISave 84.5%1.65ct | Radiant | D | VVS2 | Very Good
From $514
Compare at $3,320
IGISave 79.3%1.65ct | Radiant | F | VVS2 | Ideal
From $503
Compare at $2,430
IGISave 53.8%1.65ct | Radiant | F | VS1 | Very Good
From $444
Compare at $961
GCALSave 73.5%1.65ct | Radiant | E | VS2 | Excellent
From $864
Compare at $3,260
GIASave 82.8%1.65ct | Radiant | E | VVS1 | Very Good
From $780
Compare at $4,530
GIASave 36.6%1.65ct | Radiant | E | VVS1 | Ideal
From $3,310
Compare at $5,220
GIASave 79.4%1.65ct | Radiant | D | IF | Excellent
From $1,950
Compare at $9,450
GIASave 81.3%1.65ct | Radiant | D | VVS1 | Excellent
From $827
Compare at $4,410
IGISave 64.7%1.65ct | Radiant | H | VS2 | Ideal
From $2,410
Compare at $6,833
IGISave 72.1%1.65ct | Radiant | E | VS1 | Very Good
From $589
Compare at $2,110
IGISave 50.8%1.65ct | Radiant | H | VS1 | Ideal
From $514
Compare at $1,044
IGISave 70.2%1.65ct | Radiant | I | VVS2 | Ideal
From $533
Compare at $1,790
IGISave 39.1%1.65ct | Radiant | F | VS1 | Ideal
From $1,014
Compare at $1,666
IGISave 72.9%1.65ct | Radiant | F | VS2 | Ideal
From $984
Compare at $3,630
IGISave 71.6%1.65ct | Radiant | F | VVS2 | Very Good
From $637
Compare at $2,240
IGISave 73.7%1.65ct | Radiant | G | VVS2 | Very Good
From $615
Compare at $2,340
IGISave 78.9%1.65ct | Radiant | D | VS2 | Ideal
From $483
Compare at $2,290
IGISave 72.9%1.65ct | Radiant | G | VS1 | Very Good
From $483
Compare at $1,780
IGISave 75.1%1.65ct | Radiant | F | VVS2 | Ideal
From $511
Compare at $2,050
Entry pricing in this category starts around $328.
What to Know When Shopping for 1.7 Carat Radiant Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $5,782 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 $611 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.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 1,728 comparable stones in this segment. Prices start around $328 and go up to $6,110.
Based on the latest market data, the average asking price is about $795 with a median around $611.
The observed spread is roughly $5,782 across tracked listings, which is about 94.6% 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 $611, 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 10 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 $5,782 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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