Oval|Lab Grown|IGI

4.51ct F VS2 Oval Lab Grown Diamond

ID • F/VS2 • IGI LG821686846

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG821686846

Diamond specifications and retailer prices

From $2,275 NZD

$1,282 USD

As of October 26, 2026

Save $10,802 NZD (83%) vs most expensive(unlock to see where)

12 retailers carry this diamond

Most expensive: $13,077 NZD at Brilliant Earth · As of October 26, 2026

View at Brilliant Earth

About this 4.51ct lab-grown oval diamond

This 4.51ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821686846 or 821686846. Listed at 12 retailers as of October 26, 2026, with prices from $2,275 to $13,077, a $10,802 spread on the same certified stone. Brilliant Earth lists it at $13,077. 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

4.51

Carat

Colour

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33.8°

Pavilion angle41°

OriginLab Grown

Grading LabIGI

CertificateIGI LG821686846

Dimensions13.04 × 9.49 × 5.76 mm

L/W Ratio1.37

Girdle conditionFaceted

Culet sizeNone

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 LG821686846

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26

Current: $13,077 NZD|Low: $1,173 NZD|High: $13,467 NZD|Avg: $5,478 NZD|-2.9%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

October 25, 2026

Retailer 8$1,205 NZD

Retailer 6$1,311 NZD

Retailer 4$1,422 NZD

Retailer 11$2,275 NZD

Retailer 7$3,570 NZD

Retailer 5$3,575 NZD

Retailer 9$4,338 NZD

Retailer 2$6,066 NZD

Retailer 3$7,270 NZD

Retailer 10$10,699 NZD

Brilliant Earth$13,077 NZD

22 data points across 11 retailers

12 retailers$2,275 NZD to $13,077 NZD

Retailer 1

$1,205 NZD

$679 USD

Price last confirmed 10 days ago

Retailer 2

$1,311 NZD

$739 USD

View

Price last confirmed 8 days ago

Retailer 3

$1,422 NZD

£631 GBP

View

Price last confirmed 11 days ago

B+

Retailer 4

$2,275 NZD

$1,282 USD

View

Retailer 5

$3,570 NZD

$2,012 USD

View

Price last confirmed 7 days ago

Retailer 6

$3,575 NZD

$2,015 USD

View

Price last confirmed 6 days ago

Retailer 7

$3,832 NZD

$2,160 USD

View

Price last confirmed 7 days ago

Retailer 8

$4,338 NZD

$2,445 USD

View

Price last confirmed 8 days ago

Retailer 9

$6,066 NZD

£2,692 GBP

View

Retailer 10

$7,270 NZD

$4,097 USD

View

Retailer 11

$10,699 NZD

$6,030 USD

View

Most Expensive

Brilliant Earth

20927302Y · Oct 26

$13,077 NZD

$7,370 USD

View

11 more retailers have this diamond

Prices start from $2,275 NZDSave up to $10,802 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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4.51ct Oval

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