Round|Lab Grown|IGI

2.51ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG847635118

Shape and cutting style on the report: Round brilliant

Certificate IGI LG847635118

Diamond specifications and retailer prices

From $858 USD

HK$6,700 HKD

As of November 1, 2026

Save $5,362 USD (86%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: $6,220 USD at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG847635118 or 847635118. Listed at 14 retailers as of November 1, 2026, with prices from $858 to $6,220, a $5,362 spread on the same certified stone. Brilliant Earth lists it at $6,220. 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

2.51

Carat

Color

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle33°

Pavilion angle40.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG847635118

Dimensions8.76 × 8.79 × 5.29 mm

L/W Ratio1.00

Girdle conditionFaceted

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG847635118

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: $6,220 USD|Low: $858 USD|High: $7,000 USD|Avg: $1,914 USD|-11.1%

Brilliant Earth

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

November 2, 2026

Retailer 3$858 USD

Retailer 2$950 USD

Retailer 4$1,060 USD

Retailer 10$1,060 USD

Retailer 7$1,173 USD

Retailer 13$1,204 USD

Retailer 11$1,764 USD

Retailer 12$1,898 USD

Retailer 14$1,917 USD

Retailer 6$2,416 USD

Retailer 5$2,495 USD

Retailer 8$3,131 USD

Retailer 9$5,060 USD

Brilliant Earth$6,220 USD

12 data points across 14 retailers

14 retailers$858 USD to $6,220 USD

Cheapest Retailer

$858 USD

HK$6,700 HKD

Retailer 2

$950 USD

£748 GBP

View

Retailer 3

$1,060 USD

View

Retailer 4

$1,060 USD

View

Retailer 5

$1,173 USD

£924 GBP

View

Retailer 6

$1,204 USD

€1,147 EUR

View

B+

Retailer 7

$1,764 USD

A$2,714 AUD

View

B+

Retailer 8

$1,898 USD

View

B+

Retailer 9

$1,917 USD

ZAR 30,970 ZAR

View

B+

Retailer 10

$2,416 USD

View

B+

Retailer 11

$2,495 USD

SGD 3,371 SGD

View

B+

Retailer 12

$3,131 USD

£2,465 GBP

View

Retailer 13

$5,060 USD

View

Most Expensive

Brilliant Earth

22230090A · Nov 2

$6,220 USD

View

13 more retailers have this diamond

Prices start from $858 USDSave up to $5,362 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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2.51ct Round

$858 USD