Radiant|Lab Grown|IGI

15.51ct G VS2 Radiant Lab Grown Diamond

ID • G/VS2 • IGI LG617499488

Shape and cutting style on the report: Cut cornered rectangular mixed cut

Certificate IGI LG617499488

Diamond specifications and retailer prices

From $2,841 USD
As of October 30, 2026
Save $10,664 USD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,505 USD at Adiamor · As of October 31, 2026
View at Adiamor

About this 15.51ct lab-grown radiant diamond

This 15.51ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG617499488 or 617499488. Listed at 16 retailers as of October 30, 2026, with prices from $2,841 to $13,505, a $10,664 spread on the same certified stone. Adiamor lists it at $13,505. 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

15.51
Carat
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.3°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617499488
Dimensions16.36 × 11.67 × 7.63 mm
L/W Ratio1.40
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
16.36 mm11.67 mm15.51 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617499488
Side View
Table 66.0%Crown 27.3°Girdle: MED-STKPavilion 32.6°Culet: LNGDepth 65.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $13,505 USD|Low: $2,727 USD|High: $13,563 USD|Avg: $4,463 USD|-0.4%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 12$2,841 USD
Retailer 11$3,091 USD
Retailer 3$3,181 USD
Retailer 5$3,296 USD
Retailer 9$3,296 USD
Retailer 6$3,864 USD
Retailer 8$4,210 USD
Retailer 13$4,316 USD
Retailer 2$4,416 USD
Retailer 10$4,530 USD
Retailer 14$5,126 USD
Retailer 7$5,224 USD
Retailer 4$9,174 USD
Adiamor$13,505 USD

42 data points across 14 retailers

16 retailers$2,841 USD to $13,505 USD

A
Cheapest Retailer
-
$2,841 USD
A
Retailer 2
-
$3,091 USD
View
A
Retailer 3
-
$3,181 USD
View
Final sale: no returns
A
Retailer 4
-
$3,296 USD
View
Retailer 5
-
$3,296 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$3,864 USD
View
A
Retailer 7
-
$4,210 USD
View
A
Retailer 8
-
$4,316 USD
View
A
Retailer 9
-
$4,416 USD
£3,477 GBP
View
A
Retailer 10
-
$4,530 USD
View
Retailer 11
-
$5,126 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$5,224 USD
€4,975 EUR
View
Retailer 13
-
$6,956 USD
View
Price last confirmed 39 days ago
B
Retailer 14
-
$9,174 USD
View
B
Retailer 15
-
$11,484 USD
View
Most Expensive
B
Adiamor
D-69792673 · Oct 31
$13,505 USD
View
15 more retailers have this diamond
Prices start from $2,841 USDSave up to $10,664 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.

A
15.51ct Radiant
$2,841 USD