Radiant|Natural|GIA

2.51ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 6531051628

Certificate GIA 6531051628

Diamond specifications and retailer prices

From €21,100 EUR

$23,666 USD

As of October 29, 2026

Save €15,796 EUR (43%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: €36,896 EUR at MOH London · As of October 29, 2026

View at MOH London

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531051628. Listed at 26 retailers as of October 29, 2026, with prices from €21,100 to €36,896, a €15,796 spread on the same certified stone. MOH London lists it at €36,896. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

OriginNatural

Grading LabGIA

CertificateGIA 6531051628

Dimensions8.94 × 6.68 × 4.65 mm

L/W Ratio1.34

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceMedium

CertificateGIA 6531051628

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

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

Price History

Last verified: Oct 29

Current: €36,896 EUR|Low: €21,100 EUR|High: €37,142 EUR|Avg: €26,086 EUR|-0.7%

MOH London

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Retailer 23

October 29, 2026

Retailer 10€21,100 EUR

Retailer 6€21,394 EUR

Retailer 9€22,869 EUR

Retailer 22€23,498 EUR

Retailer 3€23,690 EUR

Retailer 8€23,695 EUR

Retailer 2€23,821 EUR

Retailer 11€24,120 EUR

Retailer 21€24,477 EUR

Retailer 20€24,674 EUR

Retailer 14€24,884 EUR

Retailer 15€24,884 EUR

Retailer 19€25,457 EUR

Retailer 12€25,713 EUR

Retailer 13€26,069 EUR

Retailer 23€26,436 EUR

Retailer 4€27,352 EUR

Retailer 7€27,963 EUR

Retailer 17€28,468 EUR

Retailer 16€29,269 EUR

Retailer 5€29,378 EUR

Retailer 18€32,321 EUR

MOH London€36,896 EUR

15 data points across 23 retailers

26 retailers€21,100 EUR to €36,896 EUR

Cheapest Retailer

€21,100 EUR

$23,666 USD

Retailer 2

€21,394 EUR

$23,996 USD

View

Retailer 3

€22,869 EUR

$25,650 USD

View

Price last confirmed 5 days ago

Retailer 4

€23,498 EUR

$26,356 USD

View

Price last confirmed 8 days ago

B+

Retailer 5

€23,690 EUR

CA$36,904 CAD

View

B+

Retailer 6

€23,695 EUR

$26,576 USD

View

B+

Retailer 7

€23,821 EUR

£21,038 GBP

View

B+

Retailer 8

€24,120 EUR

$27,053 USD

View

B+

Retailer 9

€24,477 EUR

$27,454 USD

View

Retailer 10

€24,477 EUR

$27,454 USD

View

Price last confirmed 22 days ago

Retailer 11

€24,674 EUR

$27,674 USD

View

Price last confirmed 8 days ago

B+

Retailer 12

€24,884 EUR

$27,910 USD

View

B+

Retailer 13

€24,884 EUR

$27,910 USD

View

Retailer 14

€25,457 EUR

$28,553 USD

View

Price last confirmed 7 days ago

Retailer 15

€25,457 EUR

$28,553 USD

View

Price last confirmed 13 days ago

B+

Retailer 16

€25,713 EUR

$28,840 USD

View

B+

Retailer 17

€26,069 EUR

£23,023 GBP

View

B+

Retailer 18

€26,436 EUR

$29,651 USD

View

Retailer 19

€26,436 EUR

$29,651 USD

View

Price last confirmed 21 days ago

Retailer 20

€26,436 EUR

$29,651 USD

View

Price last confirmed 12 days ago

Retailer 21

€27,352 EUR

$30,678 USD

View

Retailer 22

€27,963 EUR

$31,364 USD

View

Retailer 23

€28,468 EUR

View

Retailer 24

€29,378 EUR

$32,950 USD

View

Retailer 25

€32,321 EUR

ZAR 585,636 ZAR

View

Most Expensive

MOH London

78D970913 · Oct 29

€36,896 EUR

£32,585 GBP

View

25 more retailers have this diamond

Prices start from €21,100 EURSave up to €15,796 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.

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