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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 3455453944

Certificate GIA 3455453944

Diamond specifications and retailer prices

From $2,885 SGD
As of November 6, 2026
Save $4,875 SGD (63%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,761 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 3455453944. Listed at 22 retailers as of November 5, 2026, with prices from $2,885 to $7,761, a $4,875 spread on the same certified stone. NZ Jewellers lists it at $7,761. 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
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3455453944
Dimensions6.38 × 6.32 × 3.99 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.38 mm6.32 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3455453944
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.2%

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: $3,454 SGD|Low: $2,676 SGD|High: $6,282 SGD|Avg: $3,819 SGD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$2,885 SGD
Retailer 4$2,906 SGD
Retailer 6$3,104 SGD
Retailer 1$3,454 SGD
Retailer 7$3,492 SGD
Retailer 2$3,906 SGD
Retailer 3$4,050 SGD
Retailer 5$6,208 SGD

43 data points across 8 retailers

22 retailers$2,885 SGD to $7,761 SGD

Retailer 1
-
$2,765 SGD
Price last confirmed 26 days ago
A
Retailer 2
-
$2,885 SGD
View
A
Retailer 3
-
$2,906 SGD
View
A
Retailer 4
-
$2,951 SGD
View
B+
Retailer 5
-
$3,012 SGD
View
B+
Retailer 6
-
$3,104 SGD
View
Final sale: no returns
B+
Retailer 7
-
$3,120 SGD
View
Retailer 8
-
$3,363 SGD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$3,363 SGD
View
B+
Retailer 10
-
$3,412 SGD
View
B+
Retailer 11
-
$3,454 SGD
View
B+
Retailer 12
-
$3,492 SGD
View
B
Retailer 13
-
$3,845 SGD
View
B
Retailer 14
-
$3,845 SGD
View
B
Retailer 15
-
$3,880 SGD
View
B+
Retailer 16
-
$3,906 SGD
View
B
Retailer 17
-
$3,972 SGD
View
B+
Retailer 18
-
$4,050 SGD
View
Retailer 19
-
$4,311 SGD
View
Price last confirmed 14 days ago
B
Retailer 20
-
$6,208 SGD
View
B
Retailer 21
-
$7,627 SGD
View
Most Expensive
B
NZ Jewellers
bcb0ac1b-07bb-4a7d-b9c3-dcd4980bfa5b · Nov 5
$7,761 SGD
$6,076 USD
View
21 more retailers have this diamond
Prices start from $2,885 SGDSave up to $4,875 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
$2,885 SGD