Oval|Lab Grown|IGI

6.57ct G VS1 Oval Lab Grown Diamond

EX • G/VS1 • IGI LG600334312

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG600334312

Diamond specifications and retailer prices

From $1,166 USD

As of November 1, 2026

Save $3,570 USD (75%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: $4,736 USD at Taylor and Hart · As of October 31, 2026

View at Taylor and Hart

About this 6.57ct lab-grown oval diamond

This 6.57ct lab-grown oval sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG600334312 or 600334312. Listed at 22 retailers as of October 31, 2026, with prices from $1,166 to $4,736, a $3,570 spread on the same certified stone. Taylor and Hart lists it at $4,736. 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

6.57

Carat

Color

VS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.6°

Pavilion angle40.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG600334312

Dimensions15.73 × 10.54 × 6.39 mm

L/W Ratio1.49

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG600334312

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: Nov 1

Current: $1,448 USD|Low: $1,119 USD|High: $4,403 USD|Avg: $2,261 USD|-1.1%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

November 2, 2026

Retailer 9$1,166 USD

Retailer 3$1,352 USD

Retailer 10$1,352 USD

Retailer 1$1,448 USD

Retailer 8$1,525 USD

Retailer 4$1,962 USD

Retailer 2$2,148 USD

Retailer 5$2,506 USD

Retailer 6$2,617 USD

Retailer 11$3,915 USD

Retailer 7$4,369 USD

39 data points across 11 retailers

22 retailers$1,166 USD to $4,736 USD

Cheapest Retailer

$1,166 USD

Retailer 2

$1,268 USD

View

Retailer 3

$1,280 USD

HK$10,000 HKD

View

Retailer 4

$1,305 USD

View

Final sale: no returns

Retailer 5

$1,352 USD

View

Price last confirmed 16 days ago

Retailer 6

$1,352 USD

View

Retailer 7

$1,448 USD

£1,140 GBP

View

Retailer 8

$1,525 USD

View

Retailer 9

$1,820 USD

View

Retailer 10

$1,962 USD

£1,545 GBP

View

B+

Retailer 11

$2,148 USD

View

B+

Retailer 12

$2,506 USD

A$3,855 AUD

View

B+

Retailer 13

$2,535 USD

View

B+

Retailer 14

$2,617 USD

ZAR 42,277 ZAR

View

B+

Retailer 15

$2,665 USD

View

B+

Retailer 16

$2,719 USD

View

Retailer 17

$3,716 USD

SGD 5,022 SGD

View

Retailer 18

$3,734 USD

£2,940 GBP

View

Retailer 19

$3,915 USD

View

Retailer 20

$4,077 USD

View

Retailer 21

$4,369 USD

£3,440 GBP

View

Most Expensive

Taylor and Hart

XQ9JCTO · Oct 31

$4,736 USD

View

21 more retailers have this diamond

Prices start from $1,166 USDSave up to $3,570 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.

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6.57ct Oval

$1,166 USD