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Round|Natural|IGI

2.50ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 789621563

Certificate IGI 789621563

Diamond specifications and retailer prices

From $12,794 USD
Save $8,281 USD (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $21,075 USD at NZ Jewellers
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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 789621563. Listed at 14 retailers, with prices from $12,794 to $21,075 at NZ Jewellers, a $8,281 spread on the same certified stone. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 789621563
Dimensions8.45 × 8.58 × 5.41 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
8.45 mm8.58 mm2.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 789621563
Side View
Table 60.0%Crown 36.6°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $21,075 USD|Low: $12,679 USD|High: $21,075 USD|Avg: $14,819 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
September 30, 2026
Retailer 4$12,794 USD
Retailer 3$12,940 USD
Retailer 5$12,949 USD
Retailer 6$13,705 USD
Retailer 10$13,947 USD
Retailer 14$13,957 USD
Retailer 9$14,888 USD
Retailer 12$15,120 USD
Retailer 8$15,334 USD
Retailer 7$15,631 USD
Retailer 13$15,702 USD
Retailer 2$17,159 USD
Retailer 11$19,986 USD
NZ Jewellers$21,075 USD

33 data points across 14 retailers

14 retailers$12,794 USD to $21,075 USD

A
Cheapest Retailer
-
$12,794 USD
A
Retailer 2
-
$12,940 USD
View
A
Retailer 3
-
$12,949 USD
View
A
Retailer 4
-
$13,705 USD
View
A
Retailer 5
-
$13,937 USD
£10,974 GBP
View
A
Retailer 6
-
$13,957 USD
View
A
Retailer 7
-
$14,888 USD
View
A
Retailer 8
-
$15,120 USD
View
A
Retailer 9
-
$15,334 USD
£12,074 GBP
View
A
Retailer 10
-
$15,631 USD
€14,887 EUR
View
A
Retailer 11
-
$15,702 USD
View
B+
Retailer 12
-
$17,159 USD
ZAR 277,207 ZAR
View
B+
Retailer 13
-
$19,986 USD
£15,737 GBP
View
Most Expensive
B+
NZ Jewellers
495728e4-04e9-41f8-94af-1f8a97cc38e1 · Sep 27
$21,075 USD
View
13 more retailers have this diamond
Prices start from $12,794 USDSave up to $8,281 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.

A
2.50ct Round
$12,794 USD