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Radiant|Lab Grown|IGI

3.12ct D VS2 Radiant Lab Grown Diamond

EX • D/VS2 • IGI LG821637509

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

Certificate IGI LG821637509

Diamond specifications and retailer prices

From $433 USD
As of October 27, 2026
Save $1,577 USD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,010 USD at Brilliance · As of October 27, 2026
View at Brilliance

About this 3.12ct lab-grown radiant diamond

This 3.12ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821637509 or 821637509. Listed at 17 retailers as of October 27, 2026, with prices from $433 to $2,010, a $1,577 spread on the same certified stone. Brilliance lists it at $2,010. 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
D
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle30.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821637509
Dimensions10.47 × 7.10 × 4.46 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.47 mm7.10 mm3.12 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821637509
Side View
Table 67.0%Crown 44.9°Girdle: MED-STKPavilion 30.5°Culet: NoneDepth 62.8%

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 27
Current: $2,010 USD|Low: $537 USD|High: $2,040 USD|Avg: $1,272 USD
Brilliance
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
October 29, 2026
Retailer 13$537 USD
Retailer 9$680 USD
Retailer 8$706 USD
Retailer 12$720 USD
Retailer 2$884 USD
Retailer 10$897 USD
Retailer 3$1,307 USD
Retailer 11$1,506 USD
Retailer 5$1,570 USD
Retailer 4$1,703 USD
Retailer 14$1,726 USD
Retailer 6$1,758 USD
Retailer 7$1,982 USD
Brilliance$2,010 USD

44 data points across 14 retailers

17 retailers$433 USD to $2,010 USD

A
Cheapest Retailer
-
$433 USD
A
Retailer 2
-
$485 USD
View
A
Retailer 3
-
$537 USD
View
A
Retailer 4
-
$537 USD
View
A
Retailer 5
-
$680 USD
View
A
Retailer 6
-
$706 USD
£556 GBP
View
B+
Retailer 7
-
$720 USD
View
A
Retailer 8
-
$884 USD
£696 GBP
View
A
Retailer 9
-
$897 USD
€854 EUR
View
A
Retailer 10
-
$1,307 USD
View
B+
Retailer 11
-
$1,506 USD
View
B+
Retailer 12
-
$1,570 USD
£1,236 GBP
View
B+
Retailer 13
-
$1,703 USD
SGD 2,302 SGD
View
B+
Retailer 14
-
$1,726 USD
View
Retailer 15
-
$1,758 USD
View
Price last confirmed 11 days ago
B+
Retailer 16
-
$1,982 USD
£1,561 GBP
View
Most Expensive
B
Brilliance
D44182452 · Oct 27
$2,010 USD
View
16 more retailers have this diamond
Prices start from $433 USDSave up to $1,577 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