Radiant|Lab Grown|IGI

15.05ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG812631214

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

Certificate IGI LG812631214

Diamond specifications and retailer prices

From $3,131 USD
As of October 30, 2026
Save $9,703 USD (76%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $12,834 USD at Adiamor · As of October 31, 2026
View at Adiamor

About this 15.05ct lab-grown radiant diamond

This 15.05ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812631214 or 812631214. Listed at 6 retailers as of October 30, 2026, with prices from $3,131 to $12,834, a $9,703 spread on the same certified stone. Adiamor lists it at $12,834. 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

15.05
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812631214
Dimensions18.05 × 12.36 × 7.92 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.05 mm12.36 mm15.05 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812631214
Side View
Table 72.0%Crown 38.5°Girdle: Slightly ThickPavilion 34.4°Culet: NoneDepth 64.1%

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: $12,834 USD|Low: $3,131 USD|High: $12,979 USD|Avg: $6,088 USD|-0.9%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 6$3,131 USD
Retailer 2$3,381 USD
Retailer 3$3,512 USD
Retailer 4$3,876 USD
Retailer 5$8,590 USD
Adiamor$12,834 USD

43 data points across 6 retailers

6 retailers$3,131 USD to $12,834 USD

A
Cheapest Retailer
-
$3,131 USD
A
Retailer 2
-
$3,381 USD
£2,662 GBP
View
B+
Retailer 3
-
$3,512 USD
View
Retailer 4
-
$3,876 USD
€3,691 EUR
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$8,590 USD
View
Most Expensive
B
Adiamor
D-82354041 · Oct 31
$12,834 USD
View
5 more retailers have this diamond
Prices start from $3,131 USDSave up to $9,703 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
15.05ct Radiant
$3,131 USD