Round|Lab Grown|IGI

6.51ct H VS2 Round Lab Grown Diamond

ID • H/VS2 • IGI LG581318483

Shape and cutting style on the report: Round brilliant

Certificate IGI LG581318483

Diamond specifications and retailer prices

From $977 USD

As of October 29, 2026

Save $3,513 USD (78%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: $4,490 USD at Blue Nile · As of October 29, 2026

View at Blue Nile

About this 6.51ct lab-grown round diamond

This 6.51ct lab-grown round sits in the over five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG581318483 or 581318483. Listed at 16 retailers as of October 29, 2026, with prices from $977 to $4,490, a $3,513 spread on the same certified stone. Blue Nile lists it at $4,490. 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

6.51

Carat

Color

VS2

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.2°

Pavilion angle40.6°

OriginLab Grown

Grading LabIGI

CertificateIGI LG581318483

Dimensions12.04 × 11.98 × 7.39 mm

L/W Ratio1.01

Girdle conditionFaceted

Culet sizePointed

Cert comments

HEARTS & ARROWS 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

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG581318483

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: $4,490 USD|Low: $651 USD|High: $5,271 USD|Avg: $2,255 USD|+0.1%

Blue Nile

Retailer 2

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Retailer 18

October 29, 2026

Retailer 9$912 USD

Retailer 3$977 USD

Retailer 11$1,063 USD

Retailer 14$1,134 USD

Retailer 16$1,134 USD

Retailer 4$1,614 USD

Retailer 17$1,615 USD

Retailer 2$1,630 USD

Retailer 15$1,695 USD

Retailer 6$1,813 USD

Retailer 18$2,125 USD

Retailer 5$2,405 USD

Retailer 12$2,443 USD

Retailer 13$3,865 USD

Retailer 7$3,949 USD

Retailer 8$4,470 USD

Blue Nile$4,490 USD

Retailer 10$5,271 USD

32 data points across 18 retailers

16 retailers$977 USD to $4,490 USD

Cheapest Retailer

$977 USD

Retailer 2

$1,063 USD

View

Retailer 3

$1,134 USD

View

Price last confirmed 12 days ago

Retailer 4

$1,134 USD

View

B+

Retailer 5

$1,614 USD

View

B+

Retailer 6

$1,615 USD

View

B+

Retailer 7

$1,630 USD

€1,552 EUR

View

Retailer 8

$1,695 USD

£1,334 GBP

View

Price last confirmed 12 days ago

B+

Retailer 9

$1,813 USD

View

B+

Retailer 10

$2,125 USD

View

B+

Retailer 11

$2,405 USD

View

B+

Retailer 12

$2,443 USD

View

Retailer 13

$3,865 USD

£3,043 GBP

View

Retailer 14

$3,949 USD

View

Price last confirmed 11 days ago

Retailer 15

$4,470 USD

View

Most Expensive

Blue Nile

25247267 · Oct 29

$4,490 USD

View

15 more retailers have this diamond

Prices start from $977 USDSave up to $3,513 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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6.51ct Round

$977 USD