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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6555401272

Certificate GIA 6555401272

Diamond specifications and retailer prices

From $2,239 SGD
As of November 6, 2026
Save $3,828 SGD (63%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,067 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555401272. Listed at 21 retailers as of November 5, 2026, with prices from $2,239 to $6,067, a $3,828 spread on the same certified stone. NZ Jewellers lists it at $6,067. 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

1.00
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555401272
Dimensions6.35 × 6.39 × 3.95 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.35 mm6.39 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555401272
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

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 6
Current: $2,700 SGD|Low: $2,239 SGD|High: $5,110 SGD|Avg: $3,049 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$2,239 SGD
Retailer 8$2,248 SGD
Retailer 6$2,422 SGD
Retailer 9$2,556 SGD
Retailer 1$2,700 SGD
Retailer 2$2,792 SGD
Retailer 4$3,112 SGD
Retailer 5$3,134 SGD
Retailer 7$3,332 SGD
Retailer 10$3,488 SGD
Retailer 11$5,071 SGD

25 data points across 11 retailers

21 retailers$2,239 SGD to $6,067 SGD

A
Cheapest Retailer
-
$2,239 SGD
A
Retailer 2
-
$2,248 SGD
View
A
Retailer 3
-
$2,422 SGD
View
A
Retailer 4
-
$2,556 SGD
View
A
Retailer 5
-
$2,621 SGD
View
A
Retailer 6
-
$2,677 SGD
View
Final sale: no returns
A
Retailer 7
-
$2,700 SGD
View
A
Retailer 8
-
$2,792 SGD
View
Retailer 9
-
$2,902 SGD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$2,902 SGD
View
B+
Retailer 11
-
$3,036 SGD
View
B+
Retailer 12
-
$3,080 SGD
View
B+
Retailer 13
-
$3,112 SGD
View
B+
Retailer 14
-
$3,134 SGD
View
B+
Retailer 15
-
$3,165 SGD
View
B+
Retailer 16
-
$3,332 SGD
View
B+
Retailer 17
-
$3,348 SGD
View
B+
Retailer 18
-
$3,488 SGD
View
B
Retailer 19
-
$4,327 SGD
View
B
Retailer 20
-
$5,071 SGD
View
Most Expensive
B
NZ Jewellers
856f0a8c-3b65-4e36-9112-446ac20fed2e · Nov 5
$6,067 SGD
$4,750 USD
View
20 more retailers have this diamond
Prices start from $2,239 SGDSave up to $3,828 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
1.00ct Round
$2,239 SGD