Round|Natural|GIA

2.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2517322026

Shape and cutting style on the report: Round brilliant

Certificate GIA 2517322026

Diamond specifications and retailer prices

From $16,352 AUD
As of November 6, 2026
Save $7,758 AUD (32%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $27,086 AUD at NZ Jewellers · As of September 18, 2026
View at NZ Jewellers

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 2517322026. Listed at 15 retailers as of November 4, 2026, with a 47% 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
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2517322026
Dimensions8.10 × 8.04 × 5.06 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
8.10 mm8.04 mm2.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2517322026
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

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 6
Current: $21,256 AUD|Low: $14,888 AUD|High: $24,489 AUD|Avg: $18,816 AUD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$15,216 AUD
Retailer 9$16,241 AUD
Retailer 4$16,352 AUD
Retailer 8$16,823 AUD
Retailer 7$17,092 AUD
Retailer 2$17,939 AUD
Retailer 5$19,379 AUD
Retailer 3$19,688 AUD
Retailer 1$21,256 AUD
Retailer 11$22,135 AUD
Retailer 6$24,110 AUD

35 data points across 11 retailers

15 retailers$16,352 AUD to $24,110 AUD

Retailer 1
-
$15,216 AUD
Price last confirmed 25 days ago
A
Retailer 2
-
$16,352 AUD
View
Retailer 3
-
$16,823 AUD
View
Price last confirmed 14 days ago
B+
Retailer 4
-
$17,092 AUD
View
Retailer 5
-
$17,595 AUD
View
Price last confirmed 29 days ago
Retailer 6
-
$17,866 AUD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$19,379 AUD
View
Retailer 8
-
$19,433 AUD
View
Price last confirmed 49 days ago
Retailer 9
-
$20,182 AUD
View
Price last confirmed 50 days ago
Retailer 10
-
$20,302 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
$21,256 AUD
View
Retailer 12
-
$22,135 AUD
View
Price last confirmed 25 days ago
B
Retailer 13
-
$24,110 AUD
View
Retailer 14
-
$24,523 AUD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
002a01e2-ae3f-4d8f-a05f-214aae6ff3e9 · Sep 18
$27,086 AUD
$18,961 USD
View
Price last confirmed 49 days ago
14 more retailers have this diamond
Prices start from $16,352 AUDSave up to $7,758 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
$16,352 AUD