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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 $4,697 AUD
$3,300 USD
As of October 29, 2026
Save $12,062 AUD (72%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $16,759 AUD at Adiamor · As of October 28, 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 28, 2026, with prices from $4,697 to $16,759, a $12,062 spread on the same certified stone. Adiamor lists it at $16,759. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $16,759 AUD|Low: $3,307 AUD|High: $16,759 AUD|Avg: $9,188 AUD|+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$4,697 AUD
Retailer 4$4,798 AUD
Retailer 5$5,089 AUD
Retailer 6$5,389 AUD
Retailer 2$6,574 AUD
Retailer 7$6,989 AUD
Retailer 12$7,563 AUD
Retailer 11$8,200 AUD
Retailer 8$12,160 AUD
Retailer 9$12,220 AUD
Retailer 10$16,539 AUD
Adiamor$16,759 AUD

42 data points across 12 retailers

14 retailers$4,697 AUD to $16,759 AUD

Retailer 1
-
$3,971 AUD
$2,790 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$4,697 AUD
$3,300 USD
View
Final sale: no returns
Retailer 3
-
$4,798 AUD
$3,371 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$4,798 AUD
$3,371 USD
View
Price last confirmed 24 days ago
A
Retailer 5
-
$5,089 AUD
$3,575 USD
View
A
Retailer 6
-
$5,389 AUD
$3,786 USD
View
A
Retailer 7
-
$6,574 AUD
£3,636 GBP
View
A
Retailer 8
-
$6,989 AUD
$4,910 USD
View
A
Retailer 9
-
$7,563 AUD
$5,313 USD
View
A
Retailer 10
-
$8,200 AUD
£4,536 GBP
View
B+
Retailer 11
-
$12,160 AUD
$8,543 USD
View
B+
Retailer 12
-
$12,220 AUD
$8,585 USD
View
B
Retailer 13
-
$16,539 AUD
$11,620 USD
View
Most Expensive
B
Adiamor
D-82381377 · Oct 28
$16,759 AUD
$11,774 USD
View
13 more retailers have this diamond
Prices start from $4,697 AUDSave up to $12,062 AUD

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
$4,697 AUD