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Round|Natural|GIA

2.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6545373534

Certificate GIA 6545373534

Diamond specifications and retailer prices

From $17,142 USD
As of October 27, 2026
Save $12,219 USD (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $29,361 USD at MOH London · As of October 29, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545373534. Listed at 21 retailers as of October 27, 2026, with prices from $17,142 to $29,361, a $12,219 spread on the same certified stone. MOH London lists it at $29,361. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6545373534
Dimensions8.58 × 8.63 × 5.43 mm
L/W Ratio1.01
Top View
8.58 mm8.63 mm2.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545373534
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.1%

Caratlytics Score

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

Price History

Last verified: Oct 27
Current: $29,361 USD|Low: $15,015 USD|High: $29,557 USD|Avg: $19,925 USD|-0.7%
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
Retailer 17
Retailer 18
October 30, 2026
Retailer 7$17,142 USD
Retailer 6$17,191 USD
Retailer 3$17,297 USD
Retailer 12$17,842 USD
Retailer 18$17,920 USD
Retailer 14$18,018 USD
Retailer 13$19,024 USD
Retailer 8$19,030 USD
Retailer 16$19,369 USD
Retailer 5$19,978 USD
Retailer 9$20,530 USD
Retailer 17$20,530 USD
Retailer 4$21,210 USD
Retailer 10$21,284 USD
Retailer 15$22,462 USD
Retailer 11$22,485 USD
Retailer 2$23,069 USD
MOH London$29,361 USD

30 data points across 18 retailers

21 retailers$17,142 USD to $29,361 USD

A
Cheapest Retailer
-
$17,142 USD
A
Retailer 2
-
$17,191 USD
View
A
Retailer 3
-
$17,297 USD
View
A
Retailer 4
-
$17,842 USD
₹1,699,190 INR
View
A
Retailer 5
-
$17,920 USD
View
Final sale: no returns
A
Retailer 6
-
$18,018 USD
View
A
Retailer 7
-
$19,024 USD
£14,980 GBP
View
B+
Retailer 8
-
$19,030 USD
View
Retailer 9
-
$19,369 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$19,934 USD
View
B+
Retailer 11
-
$19,978 USD
View
Retailer 12
-
$20,519 USD
View
Price last confirmed 36 days ago
B+
Retailer 13
-
$20,530 USD
View
B+
Retailer 14
-
$20,530 USD
View
B+
Retailer 15
-
$21,210 USD
View
Retailer 16
-
$21,284 USD
View
Price last confirmed 16 days ago
Retailer 17
-
$21,308 USD
View
Price last confirmed 36 days ago
B+
Retailer 18
-
$22,462 USD
View
B+
Retailer 19
-
$22,485 USD
€21,414 EUR
View
B+
Retailer 20
-
$23,069 USD
£18,164 GBP
View
Most Expensive
B
MOH London
F362CC09F · Oct 29
$29,361 USD
£23,119 GBP
View
20 more retailers have this diamond
Prices start from $17,142 USDSave up to $12,219 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
$17,142 USD