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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 $26,892 AUD
$18,890 USD
As of October 25, 2026
Save $20,378 AUD (43%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $47,269 AUD 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 $26,892 to $47,269, a $20,378 spread on the same certified stone. MOH London lists it at $47,269. 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: $47,269 AUD|Low: $20,286 AUD|High: $47,584 AUD|Avg: $33,654 AUD|-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$26,892 AUD
Retailer 8$27,585 AUD
Retailer 5$27,676 AUD
Retailer 11$30,106 AUD
Retailer 6$30,744 AUD
Retailer 2$30,790 AUD
Retailer 7$31,194 AUD
Retailer 12$31,611 AUD
Retailer 4$31,807 AUD
Retailer 13$32,615 AUD
Retailer 16$33,869 AUD
Retailer 9$34,743 AUD
Retailer 10$36,624 AUD
Retailer 14$41,408 AUD
Retailer 15$42,650 AUD
MOH London$47,269 AUD

30 data points across 16 retailers

23 retailers$26,892 AUD to $47,269 AUD

Retailer 1
-
$20,286 AUD
$14,250 USD
Price last confirmed 13 days ago
B
Retailer 2
-
$26,892 AUD
$18,890 USD
View
B
Retailer 3
-
$27,585 AUD
$19,377 USD
View
B
Retailer 4
-
$27,676 AUD
$19,441 USD
View
B
Retailer 5
-
$30,106 AUD
$21,148 USD
View
Retailer 6
-
$30,744 AUD
View
Price last confirmed 32 days ago
B
Retailer 7
-
$30,790 AUD
£17,030 GBP
View
B
Retailer 8
-
$31,194 AUD
$21,912 USD
View
B
Retailer 9
-
$31,611 AUD
$22,205 USD
View
Retailer 10
-
$31,807 AUD
$22,343 USD
View
Price last confirmed 17 days ago
Retailer 11
-
$31,807 AUD
$22,343 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$31,807 AUD
$22,343 USD
View
B
Retailer 13
-
$32,159 AUD
$22,590 USD
View
B
Retailer 14
-
$32,159 AUD
$22,590 USD
View
B
Retailer 15
-
$32,171 AUD
$22,598 USD
View
B
Retailer 16
-
$32,615 AUD
$22,910 USD
View
B
Retailer 17
-
$33,227 AUD
$23,340 USD
View
B
Retailer 18
-
$33,869 AUD
$23,791 USD
View
B
Retailer 19
-
$34,743 AUD
£19,217 GBP
View
B
Retailer 20
-
$36,624 AUD
€24,501 EUR
View
B
Retailer 21
-
$41,408 AUD
ZAR 469,899 ZAR
View
B
Retailer 22
-
$42,650 AUD
$29,959 USD
View
Most Expensive
B
MOH London
19637C69E · Oct 29
$47,269 AUD
£26,145 GBP
View
22 more retailers have this diamond
Prices start from $26,892 AUDSave up to $20,378 AUD

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
$26,892 AUD