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Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2557450247

Certificate GIA 2557450247

Diamond specifications and retailer prices

From $672 SGD
$526 USD
As of October 31, 2026
Save $2,337 SGD (78%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $3,009 SGD 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 2557450247. Listed at 27 retailers as of October 30, 2026, with prices from $672 to $3,009, a $2,337 spread on the same certified stone. NZ Jewellers lists it at $3,009. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2557450247
Dimensions5.19 × 5.23 × 3.29 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud
Top View
5.19 mm5.23 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557450247
Side View
Table 56.0%Crown 36.5°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 63.1%

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: Oct 31
Current: $3,009 SGD|Low: $611 SGD|High: $3,009 SGD|Avg: $1,270 SGD
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$672 SGD
Retailer 5$853 SGD
Retailer 9$876 SGD
Retailer 13$903 SGD
Retailer 4$933 SGD
Retailer 3$1,015 SGD
Retailer 10$1,099 SGD
Retailer 2$1,146 SGD
Retailer 6$1,239 SGD
Retailer 12$1,443 SGD
Retailer 8$1,481 SGD
Retailer 7$1,758 SGD
NZ Jewellers$3,009 SGD

44 data points across 13 retailers

27 retailers$672 SGD to $3,009 SGD

A
Cheapest Retailer
-
$672 SGD
$526 USD
Final sale: no returns
Retailer 2
-
$853 SGD
$667 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$869 SGD
$680 USD
View
Retailer 4
-
$869 SGD
$680 USD
View
Price last confirmed 48 days ago
A
Retailer 5
-
$876 SGD
$685 USD
View
A
Retailer 6
-
$890 SGD
$696 USD
View
A
Retailer 7
-
$900 SGD
A$1,083 AUD
View
A
Retailer 8
-
$903 SGD
$706 USD
View
B+
Retailer 9
-
$933 SGD
$730 USD
View
B+
Retailer 10
-
$1,004 SGD
$785 USD
View
B+
Retailer 11
-
$1,008 SGD
$789 USD
View
B+
Retailer 12
-
$1,015 SGD
$794 USD
View
B+
Retailer 13
-
$1,067 SGD
$835 USD
View
B+
Retailer 14
-
$1,099 SGD
$860 USD
View
B+
Retailer 15
-
$1,099 SGD
$860 USD
View
B+
Retailer 16
-
$1,099 SGD
$860 USD
View
B+
Retailer 17
-
$1,138 SGD
$890 USD
View
B+
Retailer 18
-
$1,146 SGD
£706 GBP
View
B+
Retailer 19
-
$1,153 SGD
$902 USD
View
B+
Retailer 20
-
$1,221 SGD
$955 USD
View
B+
Retailer 21
-
$1,239 SGD
€923 EUR
View
B+
Retailer 22
-
$1,343 SGD
$1,050 USD
View
Retailer 23
-
$1,443 SGD
A$1,737 AUD
View
Price last confirmed 29 days ago
B
Retailer 24
-
$1,481 SGD
ZAR 18,719 ZAR
View
B
Retailer 25
-
$1,758 SGD
£1,083 GBP
View
B
Retailer 26
-
$2,768 SGD
CA$3,007 CAD
View
Most Expensive
B
NZ Jewellers
9b665b45-e3d4-40e8-97cd-0319aba1d27e · Oct 30
$3,009 SGD
$2,354 USD
View
26 more retailers have this diamond
Prices start from $672 SGDSave up to $2,337 SGD

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
$672 SGD