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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 $616 AUD
$433 USD
As of October 27, 2026
Save $2,245 AUD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,861 AUD 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 $616 to $2,861, a $2,245 spread on the same certified stone. Brilliance lists it at $2,861. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $2,861 AUD|Low: $764 AUD|High: $2,904 AUD|Avg: $1,811 AUD
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$764 AUD
Retailer 9$968 AUD
Retailer 8$1,006 AUD
Retailer 12$1,025 AUD
Retailer 2$1,258 AUD
Retailer 10$1,277 AUD
Retailer 3$1,861 AUD
Retailer 11$2,144 AUD
Retailer 5$2,235 AUD
Retailer 4$2,425 AUD
Retailer 14$2,457 AUD
Retailer 6$2,503 AUD
Retailer 7$2,822 AUD
Brilliance$2,861 AUD

44 data points across 14 retailers

17 retailers$616 AUD to $2,861 AUD

A
Cheapest Retailer
-
$616 AUD
$433 USD
A
Retailer 2
-
$690 AUD
$485 USD
View
A
Retailer 3
-
$764 AUD
$537 USD
View
A
Retailer 4
-
$764 AUD
$537 USD
View
A
Retailer 5
-
$968 AUD
$680 USD
View
A
Retailer 6
-
$1,006 AUD
£556 GBP
View
B+
Retailer 7
-
$1,025 AUD
$720 USD
View
A
Retailer 8
-
$1,258 AUD
£696 GBP
View
Retailer 9
-
$1,277 AUD
€854 EUR
View
Price last confirmed 7 days ago
A
Retailer 10
-
$1,861 AUD
$1,307 USD
View
B+
Retailer 11
-
$2,144 AUD
$1,506 USD
View
B+
Retailer 12
-
$2,235 AUD
£1,236 GBP
View
B+
Retailer 13
-
$2,425 AUD
SGD 2,302 SGD
View
B+
Retailer 14
-
$2,457 AUD
$1,726 USD
View
Retailer 15
-
$2,503 AUD
$1,758 USD
View
Price last confirmed 12 days ago
B+
Retailer 16
-
$2,822 AUD
£1,561 GBP
View
Most Expensive
B
Brilliance
D44182452 · Oct 27
$2,861 AUD
$2,010 USD
View
16 more retailers have this diamond
Prices start from $616 AUDSave up to $2,245 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
3.12ct Radiant
$616 AUD