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Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2246751905

Certificate GIA 2246751905

Diamond specifications and retailer prices

From £430 GBP
HK$4,500 HKD
As of November 1, 2026
Save £905 GBP (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,334 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct 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 2246751905. Listed at 17 retailers as of October 30, 2026, with prices from £430 to £1,334, a £905 spread on the same certified stone. NZ Jewellers lists it at £1,334. 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

0.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2246751905
Dimensions5.25 × 5.23 × 3.27 mm
L/W Ratio1.00
Top View
5.25 mm5.23 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2246751905
Side View
Table 56.0%CrownGirdle: Sli. ThickPavilionCulet: NoneDepth 62.4%

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: £1,334 GBP|Low: £430 GBP|High: £1,593 GBP|Avg: £681 GBP|-16.3%
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
November 2, 2026
Retailer 11£458 GBP
Retailer 12£458 GBP
Retailer 3£469 GBP
Retailer 13£486 GBP
Retailer 9£548 GBP
Retailer 5£592 GBP
Retailer 2£624 GBP
Retailer 4£646 GBP
Retailer 6£657 GBP
Retailer 8£720 GBP
Retailer 10£784 GBP
Retailer 7£1,173 GBP
NZ Jewellers£1,334 GBP

33 data points across 13 retailers

17 retailers£430 GBP to £1,334 GBP

A
Cheapest Retailer
-
£430 GBP
HK$4,500 HKD
A
Retailer 2
-
£455 GBP
$610 USD
View
A
Retailer 3
-
£458 GBP
$614 USD
View
A
Retailer 4
-
£458 GBP
$614 USD
View
A
Retailer 5
-
£469 GBP
$628 USD
View
Final sale: no returns
A
Retailer 6
-
£486 GBP
$651 USD
View
B+
Retailer 7
-
£528 GBP
SGD 956 SGD
View
A
Retailer 8
-
£548 GBP
$734 USD
View
B+
Retailer 9
-
£607 GBP
$813 USD
View
B+
Retailer 10
-
£624 GBP
View
B+
Retailer 11
-
£646 GBP
$865 USD
View
B+
Retailer 12
-
£657 GBP
View
B+
Retailer 13
-
£720 GBP
€919 EUR
View
B+
Retailer 14
-
£784 GBP
ZAR 16,977 ZAR
View
B
Retailer 15
-
£1,173 GBP
View
B
Retailer 16
-
£1,184 GBP
View
Most Expensive
B
NZ Jewellers
ddfd3097-a619-4a21-b35f-0f691a70559b · Oct 30
£1,334 GBP
$1,788 USD
View
16 more retailers have this diamond
Prices start from £430 GBPSave up to £905 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
0.55ct Round
£430 GBP