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Round|Natural|GIA

2.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6441644508

Certificate GIA 6441644508

Diamond specifications and retailer prices

From £14,098 GBP
$18,890 USD
As of October 25, 2026
Save £10,683 GBP (43%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £24,781 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6441644508. Listed at 23 retailers as of October 25, 2026, with prices from £14,098 to £24,781, a £10,683 spread on the same certified stone. MOH London lists it at £24,781. 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

2.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6441644508
Dimensions8.62 × 8.57 × 5.40 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
8.62 mm8.57 mm2.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6441644508
Side View
Table 57.0%Crown 36°Girdle: NUL-NULPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: £24,781 GBP|Low: £10,635 GBP|High: £24,946 GBP|Avg: £17,644 GBP|-0.5%
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
Retailer 16
October 31, 2026
Retailer 3£14,098 GBP
Retailer 8£14,462 GBP
Retailer 5£14,509 GBP
Retailer 11£15,783 GBP
Retailer 6£16,118 GBP
Retailer 2£16,142 GBP
Retailer 7£16,354 GBP
Retailer 12£16,572 GBP
Retailer 4£16,675 GBP
Retailer 13£17,098 GBP
Retailer 16£17,756 GBP
Retailer 9£18,214 GBP
Retailer 10£19,200 GBP
Retailer 14£21,708 GBP
Retailer 15£22,359 GBP
MOH London£24,781 GBP

30 data points across 16 retailers

23 retailers£14,098 GBP to £24,781 GBP

Retailer 1
-
£10,635 GBP
$14,250 USD
Price last confirmed 13 days ago
B
Retailer 2
-
£14,098 GBP
$18,890 USD
View
B
Retailer 3
-
£14,462 GBP
$19,377 USD
View
B
Retailer 4
-
£14,509 GBP
$19,441 USD
View
B
Retailer 5
-
£15,783 GBP
$21,148 USD
View
Retailer 6
-
£16,118 GBP
A$33,225 AUD
View
Price last confirmed 32 days ago
B
Retailer 7
-
£16,142 GBP
View
B
Retailer 8
-
£16,354 GBP
$21,912 USD
View
B
Retailer 9
-
£16,572 GBP
$22,205 USD
View
Retailer 10
-
£16,675 GBP
$22,343 USD
View
Price last confirmed 17 days ago
Retailer 11
-
£16,675 GBP
$22,343 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
£16,675 GBP
$22,343 USD
View
B
Retailer 13
-
£16,860 GBP
$22,590 USD
View
B
Retailer 14
-
£16,860 GBP
$22,590 USD
View
B
Retailer 15
-
£16,866 GBP
$22,598 USD
View
B
Retailer 16
-
£17,098 GBP
$22,910 USD
View
B
Retailer 17
-
£17,419 GBP
$23,340 USD
View
B
Retailer 18
-
£17,756 GBP
$23,791 USD
View
B
Retailer 19
-
£18,214 GBP
View
B
Retailer 20
-
£19,200 GBP
€24,501 EUR
View
B
Retailer 21
-
£21,708 GBP
ZAR 469,899 ZAR
View
B
Retailer 22
-
£22,359 GBP
$29,959 USD
View
Most Expensive
B
MOH London
19637C69E · Oct 29
£24,781 GBP
View
22 more retailers have this diamond
Prices start from £14,098 GBPSave up to £10,683 GBP

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.

B
2.50ct Round
£14,098 GBP