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Round|Natural|GIA

2.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556408746

Certificate GIA 2556408746

Diamond specifications and retailer prices

From $16,753 AUD
As of November 3, 2026
Save $4,260 AUD (20%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $29,085 AUD at MOH London · As of October 21, 2026
View at MOH London

About this 2.05ct natural round diamond

This 2.05ct 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 2556408746. Listed at 18 retailers as of November 3, 2026, with a 25% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.05
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556408746
Dimensions8.05 × 8.10 × 5.09 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
8.05 mm8.10 mm2.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556408746
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.8°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: Nov 3
Current: $29,085 AUD|Low: $16,753 AUD|High: $29,277 AUD|Avg: $21,554 AUD|+0.5%
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
November 5, 2026
Retailer 9$16,753 AUD
Retailer 13$17,076 AUD
Retailer 11$17,393 AUD
Retailer 2$17,771 AUD
Retailer 6$18,616 AUD
Retailer 5$19,770 AUD
Retailer 4$20,080 AUD
Retailer 7$20,328 AUD
Retailer 10$20,328 AUD
Retailer 8$21,013 AUD
Retailer 3$23,193 AUD
Retailer 12$25,117 AUD
MOH London$29,085 AUD

37 data points across 13 retailers

18 retailers$16,753 AUD to $21,013 AUD

Retailer 1
-
$16,108 AUD
Price last confirmed 13 days ago
A
Retailer 2
-
$16,753 AUD
View
Final sale: no returns
Retailer 3
-
$17,076 AUD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$17,393 AUD
View
B+
Retailer 5
-
$17,771 AUD
View
B+
Retailer 6
-
$18,616 AUD
View
Retailer 7
-
$19,770 AUD
View
Price last confirmed 14 days ago
Retailer 8
-
$20,080 AUD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$20,328 AUD
View
B+
Retailer 10
-
$20,328 AUD
View
B+
Retailer 11
-
$21,013 AUD
View
Retailer 12
-
$21,809 AUD
View
Price last confirmed 38 days ago
Retailer 13
-
$22,150 AUD
View
Price last confirmed 39 days ago
Retailer 14
-
$22,705 AUD
View
Price last confirmed 19 days ago
Retailer 15
-
$23,002 AUD
View
Price last confirmed 38 days ago
Retailer 16
-
$25,117 AUD
View
Price last confirmed 15 days ago
Retailer 17
-
$26,242 AUD
View
Price last confirmed 39 days ago
Most Expensive
MOH London
37689B423 · Oct 21
$29,085 AUD
£16,032 GBP
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from $16,753 AUDSave up to $4,260 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
2.05ct Round
$16,753 AUD