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Round|Natural|GIA

2.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 5553643910

Certificate GIA 5553643910

Diamond specifications and retailer prices

From $24,238 USD
As of October 30, 2026
Save $17,753 USD (42%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $41,991 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553643910. Listed at 18 retailers as of October 29, 2026, with prices from $24,238 to $41,991, a $17,753 spread on the same certified stone. MOH London lists it at $41,991. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5553643910
Dimensions8.59 × 8.66 × 5.38 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
8.59 mm8.66 mm2.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553643910
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.4%

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 30
Current: $41,991 USD|Low: $23,518 USD|High: $41,991 USD|Avg: $28,470 USD|+5.0%
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
October 30, 2026
Retailer 14$24,238 USD
Retailer 13$24,348 USD
Retailer 5$25,574 USD
Retailer 12$25,629 USD
Retailer 11$26,025 USD
Retailer 6$26,038 USD
Retailer 7$26,661 USD
Retailer 2$26,987 USD
Retailer 3$28,160 USD
Retailer 9$28,160 USD
Retailer 15$28,588 USD
Retailer 4$28,816 USD
Retailer 10$29,100 USD
Retailer 8$36,784 USD
MOH London$41,991 USD

29 data points across 15 retailers

18 retailers$24,238 USD to $41,991 USD

A
Cheapest Retailer
-
$24,238 USD
A
Retailer 2
-
$24,348 USD
View
Retailer 3
-
$25,574 USD
A$39,345 AUD
View
Price last confirmed 31 days ago
A
Retailer 4
-
$25,629 USD
View
Final sale: no returns
A
Retailer 5
-
$26,025 USD
View
Retailer 6
-
$26,635 USD
View
Price last confirmed 33 days ago
A
Retailer 7
-
$26,987 USD
£21,249 GBP
View
Retailer 8
-
$27,315 USD
View
Price last confirmed 62 days ago
B+
Retailer 9
-
$28,160 USD
View
B+
Retailer 10
-
$28,160 USD
View
B+
Retailer 11
-
$28,588 USD
View
B+
Retailer 12
-
$28,816 USD
View
B+
Retailer 13
-
$29,100 USD
View
Retailer 14
-
$30,576 USD
View
Price last confirmed 32 days ago
Retailer 15
-
$31,752 USD
View
Price last confirmed 31 days ago
Retailer 16
-
$32,562 USD
View
Price last confirmed 61 days ago
B+
Retailer 17
-
$36,784 USD
ZAR 594,247 ZAR
View
Most Expensive
B
MOH London
708420CE6 · Oct 29
$41,991 USD
£33,064 GBP
View
17 more retailers have this diamond
Prices start from $24,238 USDSave up to $17,753 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
$24,238 USD