Radiant|Lab Grown|IGI

12.70ct E VS2 Radiant Lab Grown Diamond

ID • E/VS2 • IGI LG812638491

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

Certificate IGI LG812638491

Diamond specifications and retailer prices

From $3,300 USD
As of October 29, 2026
Save $8,474 USD (72%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,774 USD at Adiamor · As of October 30, 2026
View at Adiamor

About this 12.7ct lab-grown radiant diamond

This 12.7ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812638491 or 812638491. Listed at 14 retailers as of October 29, 2026, with prices from $3,300 to $11,774, a $8,474 spread on the same certified stone. Adiamor lists it at $11,774. 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

12.70
Carat
E
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle30.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812638491
Dimensions15.88 × 11.33 × 7.63 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.88 mm11.33 mm12.70 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812638491
Side View
Table 63.0%Crown 45.8°Girdle: Slightly ThickPavilion 30.1°Culet: NoneDepth 67.3%

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 29
Current: $11,774 USD|Low: $2,323 USD|High: $11,774 USD|Avg: $6,455 USD|+0.0%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3$3,300 USD
Retailer 4$3,371 USD
Retailer 5$3,575 USD
Retailer 6$3,786 USD
Retailer 2$4,618 USD
Retailer 7$4,910 USD
Retailer 12$5,313 USD
Retailer 11$5,761 USD
Retailer 8$8,543 USD
Retailer 9$8,585 USD
Retailer 10$11,620 USD
Adiamor$11,774 USD

42 data points across 12 retailers

14 retailers$3,300 USD to $11,774 USD

Retailer 1
-
$2,790 USD
Price last confirmed 25 days ago
A
Retailer 2
-
$3,300 USD
View
Final sale: no returns
Retailer 3
-
$3,371 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$3,371 USD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$3,575 USD
View
A
Retailer 6
-
$3,786 USD
View
A
Retailer 7
-
$4,618 USD
£3,636 GBP
View
A
Retailer 8
-
$4,910 USD
View
A
Retailer 9
-
$5,313 USD
View
A
Retailer 10
-
$5,761 USD
£4,536 GBP
View
B+
Retailer 11
-
$8,543 USD
View
B+
Retailer 12
-
$8,585 USD
View
B
Retailer 13
-
$11,620 USD
View
Most Expensive
B
Adiamor
D-82381377 · Oct 30
$11,774 USD
View
13 more retailers have this diamond
Prices start from $3,300 USDSave up to $8,474 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
12.70ct Radiant
$3,300 USD