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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 $34,505 AUD
$24,238 USD
As of October 30, 2026
Save $25,274 AUD (42%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $59,779 AUD 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 $34,505 to $59,779, a $25,274 spread on the same certified stone. MOH London lists it at $59,779. 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
Colour
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: $59,779 AUD|Low: $33,480 AUD|High: $59,779 AUD|Avg: $40,530 AUD|+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$34,505 AUD
Retailer 13$34,662 AUD
Retailer 5$36,407 AUD
Retailer 12$36,485 AUD
Retailer 11$37,049 AUD
Retailer 6$37,068 AUD
Retailer 7$37,955 AUD
Retailer 2$38,418 AUD
Retailer 3$40,089 AUD
Retailer 9$40,089 AUD
Retailer 15$40,698 AUD
Retailer 4$41,023 AUD
Retailer 10$41,427 AUD
Retailer 8$52,366 AUD
MOH London$59,779 AUD

29 data points across 15 retailers

18 retailers$34,505 AUD to $59,779 AUD

A
Cheapest Retailer
-
$34,505 AUD
$24,238 USD
A
Retailer 2
-
$34,662 AUD
$24,348 USD
View
Retailer 3
-
$36,407 AUD
View
Price last confirmed 30 days ago
A
Retailer 4
-
$36,485 AUD
$25,629 USD
View
Final sale: no returns
A
Retailer 5
-
$37,049 AUD
$26,025 USD
View
Retailer 6
-
$37,918 AUD
$26,635 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
$38,418 AUD
£21,249 GBP
View
Retailer 8
-
$38,886 AUD
$27,315 USD
View
Price last confirmed 62 days ago
B+
Retailer 9
-
$40,089 AUD
$28,160 USD
View
B+
Retailer 10
-
$40,089 AUD
$28,160 USD
View
B+
Retailer 11
-
$40,698 AUD
$28,588 USD
View
B+
Retailer 12
-
$41,023 AUD
$28,816 USD
View
B+
Retailer 13
-
$41,427 AUD
$29,100 USD
View
Retailer 14
-
$43,528 AUD
$30,576 USD
View
Price last confirmed 32 days ago
Retailer 15
-
$45,202 AUD
$31,752 USD
View
Price last confirmed 31 days ago
Retailer 16
-
$46,355 AUD
$32,562 USD
View
Price last confirmed 60 days ago
B+
Retailer 17
-
$52,366 AUD
ZAR 594,247 ZAR
View
Most Expensive
B
MOH London
708420CE6 · Oct 29
$59,779 AUD
£33,064 GBP
View
17 more retailers have this diamond
Prices start from $34,505 AUDSave up to $25,274 AUD

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
$34,505 AUD