Radiant|Lab Grown|IGI

3.50ct I VS1 Radiant Lab Grown Diamond

ID • I/VS1 • IGI LG692550299

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG692550299

Diamond specifications and retailer prices

From $1,539 USD
As of November 1, 2026
Save $2,691 USD (64%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,230 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.5ct lab-grown radiant diamond

This 3.5ct lab-grown radiant sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG692550299 or 692550299. Listed at 2 retailers as of October 31, 2026, with prices from $1,539 to $4,230, a $2,691 spread on the same certified stone. Brilliant Earth lists it at $4,230. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.50
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.3°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG692550299
Dimensions11.03 × 7.35 × 4.96 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.03 mm7.35 mm3.50 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG692550299
Side View
Table 65.0%Crown 46.3°Girdle: ThickPavilion 35.3°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $4,230 USD|Low: $1,216 USD|High: $4,230 USD|Avg: $2,326 USD|+1.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 23, 2026
Retailer 7$1,216 USD
Retailer 3$1,332 USD
Retailer 4$1,397 USD
Retailer 2$1,539 USD
Retailer 6$1,651 USD
Retailer 5$1,880 USD
Retailer 8$2,031 USD
Retailer 9$3,018 USD
Brilliant Earth$4,230 USD

28 data points across 9 retailers

2 retailers$1,539 USD to $4,230 USD

B+
Cheapest Retailer
-
$1,539 USD
Most Expensive
B
Brilliant Earth
16074339A · Oct 31
$4,230 USD
View
1 more retailer has this diamond
Prices start from $1,539 USDSave up to $2,691 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
3.50ct Radiant
$1,539 USD