Round|Natural|GIA

2.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2556687185

Certificate GIA 2556687185

Diamond specifications and retailer prices

From $10,973 USD
As of October 29, 2026
Save $4,183 USD (28%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $20,376 USD at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556687185. Listed at 22 retailers as of October 27, 2026, with a 38% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2556687185
Dimensions8.63 × 8.68 × 5.40 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.63 mm8.68 mm2.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556687185
Side View
Table 57.0%Crown 34.5°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $20,376 USD|Low: $9,765 USD|High: $20,376 USD|Avg: $13,104 USD
NZ Jewellers
Retailer 2
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Retailer 28
October 29, 2026
Retailer 12$9,765 USD
Retailer 21$10,618 USD
Retailer 15$10,745 USD
Retailer 9$10,973 USD
Retailer 28$11,157 USD
Retailer 8$11,206 USD
Retailer 23$11,343 USD
Retailer 20$11,424 USD
Retailer 11$11,689 USD
Retailer 2$11,708 USD
Retailer 27$11,784 USD
Retailer 6$12,225 USD
Retailer 16$13,048 USD
Retailer 13$13,183 USD
Retailer 18$13,244 USD
Retailer 26$13,290 USD
Retailer 4$13,466 USD
Retailer 14$13,545 USD
Retailer 10$13,605 USD
Retailer 17$13,706 USD
Retailer 19$13,754 USD
Retailer 3$14,100 USD
Retailer 24$14,570 USD
Retailer 7$14,931 USD
Retailer 22$15,156 USD
Retailer 25$16,703 USD
Retailer 5$19,272 USD
NZ Jewellers$20,376 USD

34 data points across 28 retailers

22 retailers$10,973 USD to $15,156 USD

A
Retailer 1
-
$10,745 USD
Price last confirmed 22 days ago
A
Retailer 2
-
$10,973 USD
View
A
Retailer 3
-
$11,343 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
$11,689 USD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$11,708 USD
₹1,115,052 INR
View
A
Retailer 6
-
$11,784 USD
CA$16,366 CAD
View
A
Retailer 7
-
$12,225 USD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$13,048 USD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$13,183 USD
View
B+
Retailer 10
-
$13,244 USD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$13,466 USD
View
B+
Retailer 12
-
$13,545 USD
View
B+
Retailer 13
-
$13,605 USD
View
B+
Retailer 14
-
$13,706 USD
View
Price last confirmed 21 days ago
B+
Retailer 15
-
$13,754 USD
View
Price last confirmed 20 days ago
B+
Retailer 16
-
$13,826 USD
View
B+
Retailer 17
-
$14,100 USD
View
B+
Retailer 18
-
$14,931 USD
View
B+
Retailer 19
-
$15,156 USD
€14,434 EUR
View
B+
Retailer 20
-
$16,703 USD
£13,152 GBP
View
Price last confirmed 20 days ago
B
Retailer 21
-
$19,272 USD
£15,175 GBP
View
Price last confirmed 21 days ago
Most Expensive
B
NZ Jewellers
2cc54c46-9023-42d3-9e70-8a74e9fb4ff3 · Oct 9
$20,376 USD
View
Price last confirmed 20 days ago
21 more retailers have this diamond
Prices start from $10,973 USDSave up to $4,183 USD

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.

A
2.50ct Round
$10,973 USD