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Round|Natural|GIA

2.05ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7426802670

Certificate GIA 7426802670

Diamond specifications and retailer prices

From $39,941 AUD
As of November 1, 2026
Save $23,350 AUD (37%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $75,055 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 2.05ct natural round diamond

This 2.05ct 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 7426802670. Listed at 22 retailers as of November 1, 2026, with a 58% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7426802670
Dimensions8.11 × 8.07 × 5.04 mm
L/W Ratio1.00
Top View
8.11 mm8.07 mm2.05 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7426802670
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $42,721 AUD|Low: $39,941 AUD|High: $72,848 AUD|Avg: $50,557 AUD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$39,941 AUD
Retailer 7$42,249 AUD
Retailer 1$42,721 AUD
Retailer 3$45,605 AUD
Retailer 8$46,022 AUD
Retailer 4$53,729 AUD
Retailer 2$63,291 AUD
Retailer 5$71,789 AUD

34 data points across 8 retailers

22 retailers$39,941 AUD to $63,291 AUD

B+
Cheapest Retailer
-
$39,941 AUD
B
Retailer 2
-
$41,961 AUD
View
B
Retailer 3
-
$42,028 AUD
View
B
Retailer 4
-
$42,249 AUD
View
Final sale: no returns
B+
Retailer 5
-
$42,721 AUD
View
B
Retailer 6
-
$43,452 AUD
View
B
Retailer 7
-
$44,769 AUD
View
B
Retailer 8
-
$45,605 AUD
View
Retailer 9
-
$46,022 AUD
View
Price last confirmed 33 days ago
Retailer 10
-
$46,089 AUD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$48,010 AUD
View
B
Retailer 12
-
$48,140 AUD
View
B
Retailer 13
-
$48,140 AUD
View
B
Retailer 14
-
$48,395 AUD
View
B
Retailer 15
-
$49,740 AUD
View
B
Retailer 16
-
$49,930 AUD
View
B
Retailer 17
-
$51,852 AUD
View
B
Retailer 18
-
$53,729 AUD
View
B
Retailer 19
-
$53,884 AUD
View
B
Retailer 20
-
$63,291 AUD
View
Retailer 21
-
$71,789 AUD
View
Price under review
Most Expensive
Diamond Quarter
2.05SI1D7470DE77N · Nov 5
$75,055 AUD
£41,371 GBP
View
Price under review
21 more retailers have this diamond
Prices start from $39,941 AUDSave up to $23,350 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.

B+
2.05ct Round
$39,941 AUD