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Radiant|Lab Grown|IGI

3.12ct G VS2 Radiant Lab Grown Diamond

ID • G/VS2 • IGI LG836674515

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

Certificate IGI LG836674515

Diamond specifications and retailer prices

From $433 USD
As of October 30, 2026
Save $2,147 USD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,580 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG836674515 or 836674515. Listed at 15 retailers as of October 30, 2026, with prices from $433 to $2,580, a $2,147 spread on the same certified stone. Brilliant Earth lists it at $2,580. 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

3.12
Carat
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle27.5°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836674515
Dimensions10.02 × 7.02 × 4.98 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.02 mm7.02 mm3.12 ctG / VS2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG836674515
Side View
Table 67.0%Crown 27.5°Girdle: VTK-ETKPavilion 37.7°Culet: NoneDepth 70.9%

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: $2,580 USD|Low: $416 USD|High: $4,520 USD|Avg: $1,269 USD|-42.9%
Brilliant Earth
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
Retailer 15
November 1, 2026
Retailer 13$433 USD
Retailer 10$484 USD
Retailer 6$537 USD
Retailer 14$537 USD
Retailer 8$680 USD
Retailer 4$720 USD
Retailer 9$843 USD
Retailer 2$886 USD
Retailer 3$1,073 USD
Retailer 12$1,291 USD
Retailer 5$1,726 USD
Retailer 7$1,758 USD
Retailer 11$1,982 USD
Retailer 15$2,010 USD
Brilliant Earth$2,580 USD

35 data points across 15 retailers

15 retailers$433 USD to $2,580 USD

A
Cheapest Retailer
-
$433 USD
A
Retailer 2
-
$484 USD
View
Final sale: no returns
A
Retailer 3
-
$537 USD
View
Retailer 4
-
$537 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$680 USD
View
B+
Retailer 6
-
$720 USD
View
A
Retailer 7
-
$843 USD
€803 EUR
View
A
Retailer 8
-
$886 USD
£698 GBP
View
B+
Retailer 9
-
$1,073 USD
View
B+
Retailer 10
-
$1,291 USD
View
B
Retailer 11
-
$1,726 USD
View
B
Retailer 12
-
$1,758 USD
View
B+
Retailer 13
-
$1,982 USD
£1,561 GBP
View
B
Retailer 14
-
$2,010 USD
View
Most Expensive
B
Brilliant Earth
21671823A · Oct 31
$2,580 USD
View
14 more retailers have this diamond
Prices start from $433 USDSave up to $2,147 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
3.12ct Radiant
$433 USD