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 $768 NZD

$433 USD

As of October 27, 2026

Save $2,798 NZD (78%) vs most expensive(unlock to see where)

17 retailers carry this diamond

Most expensive: $3,566 NZD 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 $768 to $3,566, a $2,798 spread on the same certified stone. Brilliance lists it at $3,566. 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

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG821637509

Side View

Caratlytics Score

How it works →

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: $3,566 NZD|Low: $953 NZD|High: $3,619 NZD|Avg: $2,258 NZD

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$953 NZD

Retailer 9$1,207 NZD

Retailer 8$1,253 NZD

Retailer 12$1,277 NZD

Retailer 2$1,568 NZD

Retailer 10$1,591 NZD

Retailer 3$2,319 NZD

Retailer 11$2,672 NZD

Retailer 5$2,785 NZD

Retailer 4$3,022 NZD

Retailer 14$3,062 NZD

Retailer 6$3,120 NZD

Retailer 7$3,517 NZD

Brilliance$3,566 NZD

43 data points across 14 retailers

17 retailers$768 NZD to $3,566 NZD

Cheapest Retailer

$768 NZD

$433 USD

Retailer 2

$861 NZD

$485 USD

View

Retailer 3

$953 NZD

$537 USD

View

Retailer 4

$953 NZD

$537 USD

View

Retailer 5

$1,207 NZD

$680 USD

View

Retailer 6

$1,253 NZD

£556 GBP

View

B+

Retailer 7

$1,277 NZD

$720 USD

View

Retailer 8

$1,568 NZD

£696 GBP

View

Retailer 9

$1,591 NZD

€854 EUR

View

Price last confirmed 7 days ago

Retailer 10

$2,319 NZD

$1,307 USD

View

B+

Retailer 11

$2,672 NZD

$1,506 USD

View

B+

Retailer 12

$2,785 NZD

£1,236 GBP

View

B+

Retailer 13

$3,022 NZD

SGD 2,302 SGD

View

B+

Retailer 14

$3,062 NZD

$1,726 USD

View

Retailer 15

$3,120 NZD

$1,758 USD

View

Price last confirmed 12 days ago

B+

Retailer 16

$3,517 NZD

£1,561 GBP

View

Most Expensive

Brilliance

D44182452 · Oct 27

$3,566 NZD

$2,010 USD

View

16 more retailers have this diamond

Prices start from $768 NZDSave up to $2,798 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.

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3.12ct Radiant

$768 NZD