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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 €35,960 EUR
$40,175 USD
As of November 1, 2026
Save €28,417 EUR (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €64,377 EUR 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 €35,960 to €64,377, a €28,417 spread on the same certified stone. MOH London lists it at €64,377. 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
Color
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: €64,377 EUR|Low: €35,960 EUR|High: €66,073 EUR|Avg: €45,734 EUR|-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€35,960 EUR
Retailer 10€37,304 EUR
Retailer 5€37,887 EUR
Retailer 11€38,959 EUR
Retailer 3€41,571 EUR
Retailer 9€42,482 EUR
Retailer 7€44,200 EUR
Retailer 8€44,200 EUR
Retailer 6€45,667 EUR
Retailer 2€49,800 EUR
MOH London€64,377 EUR

35 data points across 11 retailers

11 retailers€35,960 EUR to €64,377 EUR

B+
Cheapest Retailer
-
€35,960 EUR
$40,175 USD
B+
Retailer 2
-
€37,304 EUR
$41,676 USD
View
B+
Retailer 3
-
€37,887 EUR
View
B+
Retailer 4
-
€38,959 EUR
$43,525 USD
View
B
Retailer 5
-
€41,571 EUR
$46,443 USD
View
Final sale: no returns
B
Retailer 6
-
€42,482 EUR
$47,461 USD
View
B+
Retailer 7
-
€44,200 EUR
$49,380 USD
View
B+
Retailer 8
-
€44,200 EUR
$49,380 USD
View
B
Retailer 9
-
€45,667 EUR
$51,020 USD
View
B
Retailer 10
-
€49,800 EUR
View
Most Expensive
B
MOH London
9B51C241D · Nov 1
€64,377 EUR
£56,632 GBP
View
10 more retailers have this diamond
Prices start from €35,960 EURSave up to €28,417 EUR

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
€35,960 EUR