Round|Natural|GIA

3.20ct I SI1 Round Natural Diamond

EX • I/SI1

Diamond specifications and retailer prices

From $38,797 AUD
$27,253 USD
As of October 31, 2026
Save $13,909 AUD (26%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $53,474 AUD at Moon Ocean · As of September 30, 2026
View at Moon Ocean

About this 3.2ct natural round diamond

This 3.2ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 15 retailers as of October 31, 2026, with a 36% 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

3.20
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
Dimensions9.37 × 9.43 × 5.88 mm
L/W Ratio1.01
Top View
9.37 mm9.43 mm3.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA
Side View
Table 56.0%CrownGirdle: MediumPavilionCulet: NDepth 62.6%

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 31
Current: $53,474 AUD|Low: $38,797 AUD|High: $53,506 AUD|Avg: $46,468 AUD|+1.5%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$38,797 AUD
Retailer 4$42,501 AUD
Retailer 3$43,329 AUD
Retailer 9$43,518 AUD
Retailer 8$45,332 AUD
Retailer 7$45,695 AUD
Retailer 10$47,145 AUD
Retailer 5$47,254 AUD
Retailer 11$48,959 AUD
Retailer 6$52,706 AUD
Moon Ocean$53,474 AUD

19 data points across 11 retailers

15 retailers$38,797 AUD to $52,706 AUD

A
Cheapest Retailer
-
$38,797 AUD
$27,253 USD
A
Retailer 2
-
$39,456 AUD
$27,716 USD
View
B+
Retailer 3
-
$42,501 AUD
CA$41,465 CAD
View
B+
Retailer 4
-
$42,501 AUD
CA$41,465 CAD
View
B+
Retailer 5
-
$43,329 AUD
$30,436 USD
View
Retailer 6
-
$43,518 AUD
$30,569 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$45,332 AUD
$31,843 USD
View
Retailer 8
-
$45,695 AUD
$32,098 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$47,145 AUD
$33,117 USD
View
B+
Retailer 10
-
$47,254 AUD
$33,193 USD
View
B+
Retailer 11
-
$47,254 AUD
$33,193 USD
View
B
Retailer 12
-
$48,959 AUD
$34,391 USD
View
B
Retailer 13
-
$52,706 AUD
$37,023 USD
View
B
Retailer 14
-
$52,706 AUD
$37,023 USD
View
Most Expensive
Moon Ocean
NVN-2F61B24F8-045 · Sep 30
$53,474 AUD
£29,577 GBP
View
Price last confirmed 32 days ago
14 more retailers have this diamond
Prices start from $38,797 AUDSave up to $13,909 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
3.20ct Round
$38,797 AUD