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Round|Natural|GIA

3.73ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1559185723

Certificate GIA 1559185723

Diamond specifications and retailer prices

From $57,193 AUD
$40,175 USD
As of November 1, 2026
Save $45,196 AUD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $102,389 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 3.73ct natural round diamond

This 3.73ct 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 1559185723. Listed at 11 retailers as of November 1, 2026, with prices from $57,193 to $102,389, a $45,196 spread on the same certified stone. MOH London lists it at $102,389. 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

3.73
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1559185723
Dimensions9.79 × 9.84 × 6.15 mm
L/W Ratio1.01
Top View
9.79 mm9.84 mm3.73 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559185723
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.7%

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: $102,389 AUD|Low: $57,193 AUD|High: $105,087 AUD|Avg: $72,763 AUD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4$57,193 AUD
Retailer 10$59,330 AUD
Retailer 5$60,257 AUD
Retailer 11$61,962 AUD
Retailer 3$66,116 AUD
Retailer 9$67,565 AUD
Retailer 7$70,297 AUD
Retailer 8$70,297 AUD
Retailer 6$72,632 AUD
Retailer 2$79,204 AUD
MOH London$102,389 AUD

34 data points across 11 retailers

11 retailers$57,193 AUD to $102,389 AUD

B+
Cheapest Retailer
-
$57,193 AUD
$40,175 USD
B+
Retailer 2
-
$59,330 AUD
$41,676 USD
View
B+
Retailer 3
-
$60,257 AUD
€40,312 EUR
View
B+
Retailer 4
-
$61,962 AUD
$43,525 USD
View
B
Retailer 5
-
$66,116 AUD
$46,443 USD
View
Final sale: no returns
B
Retailer 6
-
$67,565 AUD
$47,461 USD
View
B+
Retailer 7
-
$70,297 AUD
$49,380 USD
View
B+
Retailer 8
-
$70,297 AUD
$49,380 USD
View
B
Retailer 9
-
$72,632 AUD
$51,020 USD
View
B
Retailer 10
-
$79,204 AUD
€52,987 EUR
View
Most Expensive
B
MOH London
9B51C241D · Nov 1
$102,389 AUD
£56,632 GBP
View
10 more retailers have this diamond
Prices start from $57,193 AUDSave up to $45,196 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+
3.73ct Round
$57,193 AUD