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Round|Natural|GIA

1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1523721555

Certificate GIA 1523721555

Diamond specifications and retailer prices

From $3,663 SGD
As of November 4, 2026
Save $4,205 SGD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,868 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1523721555. Listed at 20 retailers as of November 4, 2026, with prices from $3,663 to $7,868, a $4,205 spread on the same certified stone. NZ Jewellers lists it at $7,868. 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

1.05
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1523721555
Dimensions6.50 × 6.48 × 4.04 mm
L/W Ratio1.00
Key to symbols
Twinning Wisp, Cloud, Feather, Crystal, Needle, Indented Natural
Top View
6.50 mm6.48 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1523721555
Side View
Table 57.0%Crown 34.5°Girdle: Sli. ThickPavilion 41°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,868 SGD|Low: $3,046 SGD|High: $7,868 SGD|Avg: $4,770 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
Retailer 14
November 6, 2026
Retailer 5$3,663 SGD
Retailer 4$3,666 SGD
Retailer 3$3,736 SGD
Retailer 10$4,091 SGD
Retailer 13$4,091 SGD
Retailer 11$4,250 SGD
Retailer 2$4,321 SGD
Retailer 7$4,644 SGD
Retailer 14$4,721 SGD
Retailer 6$4,837 SGD
Retailer 9$4,930 SGD
Retailer 8$5,513 SGD
Retailer 12$7,592 SGD
NZ Jewellers$7,868 SGD

31 data points across 14 retailers

20 retailers$3,663 SGD to $7,868 SGD

B+
Cheapest Retailer
-
$3,663 SGD
B+
Retailer 2
-
$3,666 SGD
View
B+
Retailer 3
-
$3,736 SGD
View
B+
Retailer 4
-
$3,823 SGD
View
Retailer 5
-
$4,091 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$4,091 SGD
View
B
Retailer 7
-
$4,250 SGD
View
B+
Retailer 8
-
$4,321 SGD
View
B+
Retailer 9
-
$4,399 SGD
View
B+
Retailer 10
-
$4,644 SGD
View
B
Retailer 11
-
$4,649 SGD
View
B
Retailer 12
-
$4,649 SGD
View
B
Retailer 13
-
$4,721 SGD
View
B
Retailer 14
-
$4,803 SGD
View
Retailer 15
-
$4,837 SGD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$4,930 SGD
View
Retailer 17
-
$5,117 SGD
View
Price last confirmed 14 days ago
B
Retailer 18
-
$5,513 SGD
View
Retailer 19
-
$7,592 SGD
View
Price last confirmed 8 days ago
Most Expensive
B
NZ Jewellers
1a135e1e-7c15-4aae-97a8-2c1afcc886a3 · Nov 5
$7,868 SGD
$6,160 USD
View
19 more retailers have this diamond
Prices start from $3,663 SGDSave up to $4,205 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.

B+
1.05ct Round
$3,663 SGD