Round|Natural|GIA

0.37ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552952647

Certificate GIA 6552952647

Diamond specifications and retailer prices

From £123 GBP
₹15,669 INR
As of November 1, 2026
Save £273 GBP (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £866 GBP at NZ Jewellers · As of October 3, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552952647. Listed at 14 retailers as of November 1, 2026, with a 223% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552952647
Dimensions4.63 × 4.64 × 2.78 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal
Top View
4.63 mm4.64 mm0.37 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552952647
Side View
Table 60.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £306 GBP|Low: £123 GBP|High: £447 GBP|Avg: £258 GBP|-7.1%
Retailer 1
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£123 GBP
Retailer 10£153 GBP
Retailer 11£193 GBP
Retailer 3£206 GBP
Retailer 8£240 GBP
Retailer 7£261 GBP
Retailer 5£269 GBP
Retailer 9£276 GBP
Retailer 1£306 GBP
Retailer 2£306 GBP
Retailer 6£396 GBP

32 data points across 11 retailers

14 retailers£123 GBP to £396 GBP

A
Cheapest Retailer
-
£123 GBP
₹15,669 INR
A
Retailer 2
-
£153 GBP
HK$1,600 HKD
View
Retailer 3
-
£191 GBP
$256 USD
View
Price last confirmed 31 days ago
A
Retailer 4
-
£193 GBP
SGD 350 SGD
View
Retailer 5
-
£216 GBP
$290 USD
View
Price last confirmed 33 days ago
A
Retailer 6
-
£240 GBP
$321 USD
View
Retailer 7
-
£257 GBP
$345 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
£261 GBP
View
A
Retailer 9
-
£269 GBP
$360 USD
View
A
Retailer 10
-
£276 GBP
ZAR 5,968 ZAR
View
A
Retailer 11
-
£306 GBP
€390 EUR
View
Retailer 12
-
£306 GBP
A$631 AUD
View
Price last confirmed 27 days ago
B+
Retailer 13
-
£396 GBP
View
Most Expensive
NZ Jewellers
9f1e7c85-8643-4c58-b99e-332a6ad930cb · Oct 3
£866 GBP
$1,161 USD
View
Price last confirmed 29 days ago
13 more retailers have this diamond
Prices start from £123 GBPSave up to £273 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
£123 GBP