Round|Natural|IGI

2.50ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 766663499

Shape and cutting style on the report: Round brilliant

Certificate IGI 766663499

Diamond specifications and retailer prices

From $8,104 USD
As of October 30, 2026
Save $7,579 USD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $15,683 USD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 766663499. Listed at 14 retailers as of October 30, 2026, with prices from $8,104 to $15,683, a $7,579 spread on the same certified stone. NZ Jewellers lists it at $15,683. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 766663499
Dimensions8.58 × 8.62 × 5.41 mm
L/W Ratio1.00
Girdle conditionPARTLY FACETED
Culet sizePointed
Top View
8.58 mm8.62 mm2.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 766663499
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
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 30
Current: $15,683 USD|Low: $8,060 USD|High: $15,683 USD|Avg: $10,532 USD
NZ Jewellers
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
November 1, 2026
Retailer 13$8,104 USD
Retailer 4$8,174 USD
Retailer 11$8,595 USD
Retailer 12$8,655 USD
Retailer 9$8,811 USD
Retailer 8$9,022 USD
Retailer 5$9,377 USD
Retailer 14$9,521 USD
Retailer 6$9,585 USD
Retailer 2$10,201 USD
Retailer 3$10,819 USD
Retailer 10$10,842 USD
Retailer 7$13,068 USD
NZ Jewellers$15,683 USD

13 data points across 14 retailers

14 retailers$8,104 USD to $15,683 USD

A
Cheapest Retailer
-
$8,104 USD
A
Retailer 2
-
$8,174 USD
View
A
Retailer 3
-
$8,595 USD
View
Retailer 4
-
$8,655 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$8,811 USD
£6,938 GBP
View
A
Retailer 6
-
$9,022 USD
£7,104 GBP
View
A
Retailer 7
-
$9,377 USD
View
Retailer 8
-
$9,521 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
$9,585 USD
View
A
Retailer 10
-
$10,201 USD
€9,715 EUR
View
B+
Retailer 11
-
$10,819 USD
View
B+
Retailer 12
-
$10,842 USD
ZAR 175,153 ZAR
View
B+
Retailer 13
-
$13,068 USD
£10,290 GBP
View
Most Expensive
B
NZ Jewellers
291df81a-f0f8-4dfb-ac9b-ef7703c7734a · Oct 30
$15,683 USD
View
13 more retailers have this diamond
Prices start from $8,104 USDSave up to $7,579 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
$8,104 USD