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 £2,463 GBP
$3,300 USD
As of October 29, 2026
Save £6,324 GBP (72%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £8,787 GBP 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 £2,463 to £8,787, a £6,324 spread on the same certified stone. Adiamor lists it at £8,787. 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
Colour
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: £8,787 GBP|Low: £1,749 GBP|High: £8,787 GBP|Avg: £4,824 GBP|+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£2,463 GBP
Retailer 4£2,516 GBP
Retailer 5£2,668 GBP
Retailer 6£2,826 GBP
Retailer 2£3,447 GBP
Retailer 7£3,664 GBP
Retailer 12£3,965 GBP
Retailer 11£4,299 GBP
Retailer 8£6,376 GBP
Retailer 9£6,407 GBP
Retailer 10£8,672 GBP
Adiamor£8,787 GBP

41 data points across 12 retailers

14 retailers£2,463 GBP to £8,787 GBP

Retailer 1
-
£2,082 GBP
$2,790 USD
Price last confirmed 27 days ago
A
Retailer 2
-
£2,463 GBP
$3,300 USD
View
Final sale: no returns
Retailer 3
-
£2,516 GBP
$3,371 USD
View
Price last confirmed 19 days ago
Retailer 4
-
£2,516 GBP
$3,371 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
£2,668 GBP
$3,575 USD
View
A
Retailer 6
-
£2,826 GBP
$3,786 USD
View
A
Retailer 7
-
£3,447 GBP
View
A
Retailer 8
-
£3,664 GBP
$4,910 USD
View
A
Retailer 9
-
£3,965 GBP
$5,313 USD
View
A
Retailer 10
-
£4,299 GBP
View
B+
Retailer 11
-
£6,376 GBP
$8,543 USD
View
B+
Retailer 12
-
£6,407 GBP
$8,585 USD
View
B
Retailer 13
-
£8,672 GBP
$11,620 USD
View
Most Expensive
B
Adiamor
D-82381377 · Oct 30
£8,787 GBP
$11,774 USD
View
13 more retailers have this diamond
Prices start from £2,463 GBPSave up to £6,324 GBP

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
£2,463 GBP