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0.54ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2566581612

Certificate GIA 2566581612

Diamond specifications and retailer prices

From £328 GBP
₹41,878 INR
As of November 1, 2026
Save £665 GBP (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £993 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.54ct natural round diamond

This 0.54ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566581612. Listed at 14 retailers as of November 1, 2026, with prices from £328 to £993, a £665 spread on the same certified stone. MOH London lists it at £993. 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

0.54
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2566581612
Dimensions5.19 × 5.22 × 3.27 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
5.19 mm5.22 mm0.54 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566581612
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.9%

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: Nov 1
Current: £993 GBP|Low: £328 GBP|High: £1,009 GBP|Avg: £533 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 7£328 GBP
Retailer 4£373 GBP
Retailer 13£397 GBP
Retailer 11£410 GBP
Retailer 5£461 GBP
Retailer 2£521 GBP
Retailer 12£521 GBP
Retailer 8£528 GBP
Retailer 9£557 GBP
Retailer 10£575 GBP
Retailer 6£594 GBP
Retailer 3£664 GBP
MOH London£993 GBP

11 data points across 13 retailers

14 retailers£328 GBP to £993 GBP

A
Cheapest Retailer
-
£328 GBP
₹41,878 INR
A
Retailer 2
-
£373 GBP
HK$3,900 HKD
View
A
Retailer 3
-
£397 GBP
$532 USD
View
Final sale: no returns
A
Retailer 4
-
£410 GBP
$549 USD
View
A
Retailer 5
-
£431 GBP
A$888 AUD
View
A
Retailer 6
-
£461 GBP
$618 USD
View
A
Retailer 7
-
£521 GBP
View
A
Retailer 8
-
£521 GBP
View
A
Retailer 9
-
£528 GBP
$708 USD
View
B+
Retailer 10
-
£557 GBP
View
B+
Retailer 11
-
£575 GBP
$770 USD
View
B+
Retailer 12
-
£594 GBP
€758 EUR
View
B+
Retailer 13
-
£664 GBP
ZAR 14,374 ZAR
View
Most Expensive
B
MOH London
238CF8157 · Nov 1
£993 GBP
View
13 more retailers have this diamond
Prices start from £328 GBPSave up to £665 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
0.54ct Round
£328 GBP