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Round|Natural|GIA

0.37ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2537991913

Certificate GIA 2537991913

Diamond specifications and retailer prices

From £183 GBP
₹23,366 INR
As of October 31, 2026
Save £394 GBP (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £577 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.37ct natural round diamond

This 0.37ct natural round sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2537991913. Listed at 13 retailers as of October 31, 2026, with prices from £183 to £577, a £394 spread on the same certified stone. MOH London lists it at £577. 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

0.37
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2537991913
Dimensions4.61 × 4.59 × 2.86 mm
L/W Ratio1.00
Top View
4.61 mm4.59 mm0.37 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2537991913
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.1%

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: £577 GBP|Low: £183 GBP|High: £582 GBP|Avg: £333 GBP|-0.8%
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 6£183 GBP
Retailer 3£220 GBP
Retailer 4£237 GBP
Retailer 11£272 GBP
Retailer 5£285 GBP
Retailer 2£321 GBP
Retailer 7£364 GBP
Retailer 10£394 GBP
Retailer 8£423 GBP
Retailer 9£511 GBP
MOH London£577 GBP

24 data points across 11 retailers

13 retailers£183 GBP to £577 GBP

A
Cheapest Retailer
-
£183 GBP
₹23,366 INR
A
Retailer 2
-
£220 GBP
HK$2,300 HKD
View
A
Retailer 3
-
£237 GBP
$317 USD
View
Retailer 4
-
£263 GBP
$352 USD
View
Price last confirmed 46 days ago
A
Retailer 5
-
£272 GBP
SGD 493 SGD
View
A
Retailer 6
-
£285 GBP
$382 USD
View
A
Retailer 7
-
£321 GBP
View
B+
Retailer 8
-
£364 GBP
$487 USD
View
B+
Retailer 9
-
£394 GBP
ZAR 8,526 ZAR
View
Retailer 10
-
£416 GBP
A$859 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
£423 GBP
€540 EUR
View
B
Retailer 12
-
£511 GBP
View
Most Expensive
B
MOH London
1C7168048 · Nov 1
£577 GBP
View
12 more retailers have this diamond
Prices start from £183 GBPSave up to £394 GBP

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
0.37ct Round
£183 GBP