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Round|Natural|GIA

2.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5566387911

Certificate GIA 5566387911

Diamond specifications and retailer prices

From $15,766 USD
Save $12,744 USD (45%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $28,510 USD at MOH London
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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566387911. Listed at 17 retailers, with prices from $15,766 to $28,510 at MOH London, a $12,744 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
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5566387911
Dimensions8.60 × 8.67 × 5.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Cloud
Top View
8.60 mm8.67 mm2.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5566387911
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.9%

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: $28,510 USD|Low: $15,766 USD|High: $28,749 USD|Avg: $20,508 USD|-0.8%
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 1, 2026
Retailer 2$15,766 USD
Retailer 9$15,821 USD
Retailer 15$18,304 USD
Retailer 6$18,545 USD
Retailer 11$19,009 USD
Retailer 5$19,112 USD
Retailer 4$19,440 USD
Retailer 16$19,910 USD
Retailer 14$20,676 USD
Retailer 3$20,906 USD
Retailer 10$21,360 USD
Retailer 12$21,603 USD
Retailer 7$22,399 USD
Retailer 13$24,478 USD
Retailer 8$25,801 USD
MOH London$28,510 USD

7 data points across 16 retailers

17 retailers$15,766 USD to $28,510 USD

A
Cheapest Retailer
-
$15,766 USD
A
Retailer 2
-
$15,821 USD
₹1,506,738 INR
View
A
Retailer 3
-
$18,304 USD
View
B+
Retailer 4
-
$18,545 USD
View
A
Retailer 5
-
$19,009 USD
A$29,244 AUD
View
B+
Retailer 6
-
$19,154 USD
£15,082 GBP
View
B+
Retailer 7
-
$19,440 USD
View
B+
Retailer 8
-
$19,910 USD
View
B+
Retailer 9
-
$20,030 USD
View
B+
Retailer 10
-
$20,676 USD
€19,691 EUR
View
B+
Retailer 11
-
$20,906 USD
View
B+
Retailer 12
-
$21,360 USD
View
B+
Retailer 13
-
$21,603 USD
£17,010 GBP
View
B+
Retailer 14
-
$22,399 USD
View
Retailer 15
-
$24,478 USD
ZAR 395,444 ZAR
View
B
Retailer 16
-
$25,801 USD
View
Most Expensive
B
MOH London
D06C8EE78 · Oct 1
$28,510 USD
£22,449 GBP
View
16 more retailers have this diamond
Prices start from $15,766 USDSave up to $12,744 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
$15,766 USD