Round|Natural|GIA

2.51ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2568369621

Certificate GIA 2568369621

Diamond specifications and retailer prices

From €23,692 EUR

HK$207,600 HKD

As of November 1, 2026

Save €19,075 EUR (45%) vs most expensive(unlock to see where)

14 retailers carry this diamond

Most expensive: €42,767 EUR at MOH London · As of November 2, 2026

View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2568369621. Listed at 14 retailers as of November 1, 2026, with prices from €23,692 to €42,767, a €19,075 spread on the same certified stone. MOH London lists it at €42,767. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51

Carat

Color

SI1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34°

Pavilion angle41.8°

OriginNatural

Grading LabGIA

CertificateGIA 2568369621

Dimensions8.60 × 8.66 × 5.44 mm

L/W Ratio1.01

Culet sizeNone

Key to symbols

Cloud, Crystal, Feather, Needle

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 2568369621

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: Nov 1

Current: €42,767 EUR|Low: €23,224 EUR|High: €42,996 EUR|Avg: €29,104 EUR|+0.3%

MOH London

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

Retailer 15

November 2, 2026

Retailer 3€23,692 EUR

Retailer 4€24,238 EUR

Retailer 5€24,252 EUR

Retailer 11€25,102 EUR

Retailer 6€25,608 EUR

Retailer 15€26,284 EUR

Retailer 7€27,043 EUR

Retailer 14€28,525 EUR

Retailer 8€28,753 EUR

Retailer 10€29,666 EUR

Retailer 9€30,202 EUR

Retailer 12€30,229 EUR

Retailer 13€30,807 EUR

Retailer 2€32,303 EUR

MOH London€42,767 EUR

28 data points across 15 retailers

14 retailers€23,692 EUR to €42,767 EUR

B+

Cheapest Retailer

€23,692 EUR

HK$207,600 HKD

B+

Retailer 2

€24,238 EUR

$27,186 USD

View

B+

Retailer 3

€25,102 EUR

$28,154 USD

View

Final sale: no returns

Retailer 4

€25,608 EUR

SGD 38,814 SGD

View

Price last confirmed 23 days ago

B+

Retailer 5

€26,284 EUR

$29,480 USD

View

Retailer 6

€27,043 EUR

A$46,664 AUD

View

Price last confirmed 30 days ago

B+

Retailer 7

€28,525 EUR

$31,994 USD

View

B+

Retailer 8

€28,753 EUR

$32,249 USD

View

B+

Retailer 9

€29,666 EUR

$33,273 USD

View

B+

Retailer 10

€30,202 EUR

£26,673 GBP

View

Retailer 11

€30,229 EUR

$33,905 USD

View

B+

Retailer 12

€30,807 EUR

$34,553 USD

View

Retailer 13

€32,303 EUR

View

Most Expensive

MOH London

834E400EB · Nov 2

€42,767 EUR

£37,770 GBP

View

13 more retailers have this diamond

Prices start from €23,692 EURSave up to €19,075 EUR

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.

Similar diamonds

B+

2.51ct Round

€23,692 EUR