Round|Natural|GIA

0.37ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2556960033

Certificate GIA 2556960033

Diamond specifications and retailer prices

From £274 GBP
$367 USD
As of October 27, 2026
Save £777 GBP (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,051 GBP at NZ Jewellers · As of October 26, 2026
View at NZ Jewellers

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 2556960033. Listed at 14 retailers as of October 26, 2026, with prices from £274 to £1,051, a £777 spread on the same certified stone. NZ Jewellers lists it at £1,051. 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
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2556960033
Dimensions4.62 × 4.58 × 2.87 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Cloud
Top View
4.62 mm4.58 mm0.37 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556960033
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.3%

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 27
Current: £1,051 GBP|Low: £274 GBP|High: £1,051 GBP|Avg: £446 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 28, 2026
Retailer 9£274 GBP
Retailer 14£274 GBP
Retailer 4£280 GBP
Retailer 12£296 GBP
Retailer 13£306 GBP
Retailer 8£353 GBP
Retailer 3£369 GBP
Retailer 5£416 GBP
Retailer 10£424 GBP
Retailer 6£439 GBP
Retailer 2£502 GBP
Retailer 7£558 GBP
Retailer 11£634 GBP
NZ Jewellers£1,051 GBP

26 data points across 14 retailers

14 retailers£274 GBP to £1,051 GBP

A
Cheapest Retailer
-
£274 GBP
$367 USD
A
Retailer 2
-
£274 GBP
$367 USD
View
Retailer 3
-
£280 GBP
$375 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
£296 GBP
$396 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£306 GBP
$410 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£353 GBP
View
B+
Retailer 7
-
£369 GBP
$495 USD
View
B+
Retailer 8
-
£416 GBP
$557 USD
View
B+
Retailer 9
-
£424 GBP
ZAR 9,186 ZAR
View
Retailer 10
-
£439 GBP
A$906 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
£502 GBP
€641 EUR
View
B
Retailer 12
-
£558 GBP
View
B
Retailer 13
-
£634 GBP
View
Most Expensive
B
NZ Jewellers
63c46d40-0395-42b1-a368-1bacdb675ccb · Oct 26
£1,051 GBP
$1,408 USD
View
13 more retailers have this diamond
Prices start from £274 GBPSave up to £777 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
£274 GBP