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Round|Natural|GIA

3.70ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2566388012

Certificate GIA 2566388012

Diamond specifications and retailer prices

From €32,481 EUR
HK$283,500 HKD
As of October 28, 2026
Save €26,792 EUR (45%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €59,273 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 3.7ct natural round diamond

This 3.7ct 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 2566388012. Listed at 8 retailers as of October 26, 2026, with prices from €32,481 to €59,273, a €26,792 spread on the same certified stone. MOH London lists it at €59,273. 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

3.70
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2566388012
Dimensions9.78 × 9.84 × 6.16 mm
L/W Ratio1.01
Girdle conditionMedium to Slightly Thick
Culet sizeNone
Top View
9.78 mm9.84 mm3.70 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566388012
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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 28
Current: €59,273 EUR|Low: €32,481 EUR|High: €62,896 EUR|Avg: €42,187 EUR|-5.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 27, 2026
Retailer 6€32,481 EUR
Retailer 3€33,849 EUR
Retailer 8€35,772 EUR
Retailer 5€37,400 EUR
Retailer 2€37,680 EUR
Retailer 7€42,143 EUR
Retailer 4€45,798 EUR
MOH London€59,273 EUR

28 data points across 8 retailers

8 retailers€32,481 EUR to €59,273 EUR

A
Cheapest Retailer
-
€32,481 EUR
HK$283,500 HKD
B+
Retailer 2
-
€33,849 EUR
₹3,601,549 INR
View
Retailer 3
-
€35,772 EUR
$39,965 USD
View
Price last confirmed 14 days ago
B+
Retailer 4
-
€37,400 EUR
$41,784 USD
View
B+
Retailer 5
-
€37,680 EUR
£33,147 GBP
View
Retailer 6
-
€42,143 EUR
$47,082 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
€45,798 EUR
View
Most Expensive
B
MOH London
9A527CA8F · Oct 26
€59,273 EUR
£52,142 GBP
View
7 more retailers have this diamond
Prices start from €32,481 EURSave up to €26,792 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.

A
3.70ct Round
€32,481 EUR