Oval|Lab Grown|IGI

3.51ct D VS2 Oval Lab Grown Diamond

ID • D/VS2 • IGI LG818635909

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818635909

Diamond specifications and retailer prices

From $1,650 NZD

$930 USD

As of October 29, 2026

Save $5,270 NZD (76%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $6,920 NZD at Brilliant Earth · As of October 30, 2026

View at Brilliant Earth

About this 3.51ct lab-grown oval diamond

This 3.51ct lab-grown oval 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 LG818635909 or 818635909. Listed at 16 retailers as of October 29, 2026, with prices from $1,650 to $6,920, a $5,270 spread on the same certified stone. Brilliant Earth lists it at $6,920. 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

3.51

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.6°

Pavilion angle40.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG818635909

Dimensions12.07 × 8.59 × 5.35 mm

L/W Ratio1.41

Girdle conditionFaceted

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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG818635909

Side View

Caratlytics Score

How it works →

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 29

Current: $6,920 NZD|Low: $1,334 NZD|High: $9,084 NZD|Avg: $3,895 NZD|-23.8%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

October 30, 2026

Retailer 3$1,334 NZD

Retailer 6$1,650 NZD

Retailer 2$1,870 NZD

Retailer 4$2,126 NZD

Retailer 10$2,175 NZD

Retailer 8$3,407 NZD

Retailer 11$4,137 NZD

Retailer 9$4,548 NZD

Retailer 7$5,474 NZD

Retailer 5$5,647 NZD

Brilliant Earth$6,920 NZD

41 data points across 11 retailers

16 retailers$1,650 NZD to $6,920 NZD

Retailer 1

$1,104 NZD

$622 USD

Price last confirmed 28 days ago

Retailer 2

$1,251 NZD

$705 USD

View

Price last confirmed 34 days ago

Retailer 3

$1,334 NZD

$752 USD

View

Price last confirmed 28 days ago

Retailer 4

$1,650 NZD

$930 USD

View

Retailer 5

$1,870 NZD

£830 GBP

View

Retailer 6

$2,126 NZD

£943 GBP

View

Retailer 7

$2,175 NZD

$1,226 USD

View

B+

Retailer 8

$2,750 NZD

$1,550 USD

View

B+

Retailer 9

$3,407 NZD

$1,920 USD

View

Retailer 10

$3,749 NZD

$2,113 USD

View

Price last confirmed 30 days ago

B+

Retailer 11

$4,137 NZD

£1,836 GBP

View

Retailer 12

$4,548 NZD

$2,563 USD

View

Retailer 13

$4,601 NZD

$2,593 USD

View

Price last confirmed 12 days ago

Retailer 14

$5,474 NZD

$3,085 USD

View

Retailer 15

$5,647 NZD

£2,506 GBP

View

Most Expensive

Brilliant Earth

20790588A · Oct 30

$6,920 NZD

$3,900 USD

View

15 more retailers have this diamond

Prices start from $1,650 NZDSave up to $5,270 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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3.51ct Oval

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