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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 $34,381 NZD
$19,377 USD
As of October 31, 2026
Save $24,220 NZD (41%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $58,601 NZD at MOH London · As of November 1, 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 31, 2026, with prices from $34,381 to $58,601, a $24,220 spread on the same certified stone. MOH London lists it at $58,601. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $58,601 NZD|Low: $25,284 NZD|High: $59,306 NZD|Avg: $42,392 NZD|-1.1%
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 1, 2026
Retailer 3$33,517 NZD
Retailer 5$34,494 NZD
Retailer 11$37,523 NZD
Retailer 6$38,318 NZD
Retailer 9$38,375 NZD
Retailer 7$38,878 NZD
Retailer 12$39,398 NZD
Retailer 4$39,643 NZD
Retailer 13$40,649 NZD
Retailer 15$42,212 NZD
Retailer 2$43,173 NZD
Retailer 8$45,327 NZD
Retailer 10$51,884 NZD
Retailer 14$53,156 NZD
MOH London$58,601 NZD

29 data points across 15 retailers

23 retailers$34,381 NZD to $58,601 NZD

Retailer 1
-
$25,284 NZD
$14,250 USD
Price last confirmed 14 days ago
Retailer 2
-
$33,517 NZD
$18,890 USD
View
Price last confirmed 7 days ago
B
Retailer 3
-
$34,381 NZD
$19,377 USD
View
B
Retailer 4
-
$34,494 NZD
$19,441 USD
View
B
Retailer 5
-
$37,523 NZD
$21,148 USD
View
Retailer 6
-
$38,318 NZD
A$33,225 AUD
View
Price last confirmed 33 days ago
B
Retailer 7
-
$38,375 NZD
£17,030 GBP
View
B
Retailer 8
-
$38,878 NZD
$21,912 USD
View
B
Retailer 9
-
$39,398 NZD
$22,205 USD
View
Retailer 10
-
$39,643 NZD
$22,343 USD
View
Price last confirmed 18 days ago
Retailer 11
-
$39,643 NZD
$22,343 USD
View
Price last confirmed 34 days ago
B
Retailer 12
-
$39,643 NZD
$22,343 USD
View
B
Retailer 13
-
$40,081 NZD
$22,590 USD
View
B
Retailer 14
-
$40,081 NZD
$22,590 USD
View
B
Retailer 15
-
$40,096 NZD
$22,598 USD
View
B
Retailer 16
-
$40,649 NZD
$22,910 USD
View
B
Retailer 17
-
$41,412 NZD
$23,340 USD
View
B
Retailer 18
-
$42,212 NZD
$23,791 USD
View
B
Retailer 19
-
$43,173 NZD
£19,159 GBP
View
B
Retailer 20
-
$45,327 NZD
€24,330 EUR
View
B
Retailer 21
-
$51,884 NZD
ZAR 472,410 ZAR
View
B
Retailer 22
-
$53,156 NZD
$29,959 USD
View
Most Expensive
B
MOH London
19637C69E · Nov 1
$58,601 NZD
£26,006 GBP
View
22 more retailers have this diamond
Prices start from $34,381 NZDSave up to $24,220 NZD

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
$34,381 NZD