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Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2454893009

Certificate GIA 2454893009

Diamond specifications and retailer prices

From $736 SGD
₹54,793 INR
As of November 1, 2026
Save $1,944 SGD (73%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,099 SGD at NZ Jewellers · As of September 15, 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 2454893009. Listed at 23 retailers as of November 1, 2026, with a 264% 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

0.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2454893009
Dimensions5.21 × 5.17 × 3.26 mm
L/W Ratio1.01
Star length50%
Top View
5.21 mm5.17 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2454893009
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: $1,182 SGD|Low: $630 SGD|High: $1,831 SGD|Avg: $1,202 SGD|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5$736 SGD
Retailer 11$911 SGD
Retailer 8$988 SGD
Retailer 2$991 SGD
Retailer 9$1,169 SGD
Retailer 1$1,182 SGD
Retailer 10$1,208 SGD
Retailer 4$1,278 SGD
Retailer 3$1,486 SGD
Retailer 7$1,522 SGD
Retailer 6$1,810 SGD

37 data points across 11 retailers

23 retailers$736 SGD to $2,679 SGD

A
Cheapest Retailer
-
$736 SGD
₹54,793 INR
Retailer 2
-
$882 SGD
$690 USD
View
Price last confirmed 21 days ago
B+
Retailer 3
-
$911 SGD
$713 USD
View
Final sale: no returns
B+
Retailer 4
-
$923 SGD
A$1,111 AUD
View
Retailer 5
-
$988 SGD
$773 USD
View
Price last confirmed 48 days ago
B+
Retailer 6
-
$988 SGD
$773 USD
View
Retailer 7
-
$988 SGD
$773 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$991 SGD
$775 USD
View
B+
Retailer 9
-
$1,004 SGD
$785 USD
View
Retailer 10
-
$1,027 SGD
$803 USD
View
Price last confirmed 17 days ago
B+
Retailer 11
-
$1,027 SGD
$803 USD
View
B+
Retailer 12
-
$1,098 SGD
$859 USD
View
Retailer 13
-
$1,140 SGD
$892 USD
View
Price last confirmed 48 days ago
B+
Retailer 14
-
$1,158 SGD
$906 USD
View
B+
Retailer 15
-
$1,169 SGD
£720 GBP
View
B+
Retailer 16
-
$1,182 SGD
£728 GBP
View
B
Retailer 17
-
$1,208 SGD
$945 USD
View
B+
Retailer 18
-
$1,278 SGD
€952 EUR
View
Retailer 19
-
$1,486 SGD
A$1,788 AUD
View
Price last confirmed 29 days ago
B
Retailer 20
-
$1,522 SGD
ZAR 19,231 ZAR
View
B
Retailer 21
-
$1,810 SGD
£1,115 GBP
View
B
Retailer 22
-
$2,679 SGD
£1,650 GBP
View
Most Expensive
NZ Jewellers
9f00f750-bed9-4676-a1ce-8fb98a8617b8 · Sep 15
$3,099 SGD
$2,424 USD
View
Price last confirmed 48 days ago
22 more retailers have this diamond
Prices start from $736 SGDSave up to $1,944 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
$736 SGD