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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 $5,876 NZD
$3,300 USD
As of October 29, 2026
Save $15,088 NZD (72%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $20,964 NZD 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 $5,876 to $20,964, a $15,088 spread on the same certified stone. Adiamor lists it at $20,964. 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: $20,964 NZD|Low: $4,136 NZD|High: $20,964 NZD|Avg: $11,493 NZD|+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$5,876 NZD
Retailer 4$6,002 NZD
Retailer 5$6,365 NZD
Retailer 6$6,741 NZD
Retailer 2$8,223 NZD
Retailer 7$8,742 NZD
Retailer 12$9,460 NZD
Retailer 11$10,257 NZD
Retailer 8$15,210 NZD
Retailer 9$15,286 NZD
Retailer 10$20,689 NZD
Adiamor$20,964 NZD

42 data points across 12 retailers

14 retailers$5,876 NZD to $20,964 NZD

Retailer 1
-
$4,968 NZD
$2,790 USD
Price last confirmed 24 days ago
A
Retailer 2
-
$5,876 NZD
$3,300 USD
View
Final sale: no returns
Retailer 3
-
$6,002 NZD
$3,371 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$6,002 NZD
$3,371 USD
View
Price last confirmed 24 days ago
A
Retailer 5
-
$6,365 NZD
$3,575 USD
View
A
Retailer 6
-
$6,741 NZD
$3,786 USD
View
A
Retailer 7
-
$8,223 NZD
£3,636 GBP
View
A
Retailer 8
-
$8,742 NZD
$4,910 USD
View
A
Retailer 9
-
$9,460 NZD
$5,313 USD
View
A
Retailer 10
-
$10,257 NZD
£4,536 GBP
View
B+
Retailer 11
-
$15,210 NZD
$8,543 USD
View
B+
Retailer 12
-
$15,286 NZD
$8,585 USD
View
B
Retailer 13
-
$20,689 NZD
$11,620 USD
View
Most Expensive
B
Adiamor
D-82381377 · Oct 30
$20,964 NZD
$11,774 USD
View
13 more retailers have this diamond
Prices start from $5,876 NZDSave up to $15,088 NZD

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
$5,876 NZD