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1.05ct H SI1 Round Natural Diamond

EX • H/SI1 • IGI 828653796

Shape and cutting style on the report: Round brilliant

Certificate IGI 828653796

Diamond specifications and retailer prices

From $2,701 SGD
As of November 6, 2026
Save $3,551 SGD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,252 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 IGI 828653796. Listed at 14 retailers as of November 5, 2026, with prices from $2,701 to $6,252, a $3,551 spread on the same certified stone. NZ Jewellers lists it at $6,252. 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 angle36.3°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 828653796
Dimensions6.41 × 6.49 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.41 mm6.49 mm1.05 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 828653796
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.4%

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: $6,252 SGD|Low: $2,701 SGD|High: $6,252 SGD|Avg: $3,436 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$2,701 SGD
Retailer 6$2,760 SGD
Retailer 2$2,819 SGD
Retailer 4$2,916 SGD
Retailer 3$2,989 SGD
Retailer 11$2,990 SGD
Retailer 7$3,123 SGD
Retailer 13$3,129 SGD
Retailer 14$3,288 SGD
Retailer 9$3,399 SGD
Retailer 8$3,483 SGD
Retailer 10$3,649 SGD
Retailer 12$5,224 SGD
NZ Jewellers$6,252 SGD

8 data points across 14 retailers

14 retailers$2,701 SGD to $6,252 SGD

A
Cheapest Retailer
-
$2,701 SGD
A
Retailer 2
-
$2,760 SGD
View
Final sale: no returns
A
Retailer 3
-
$2,819 SGD
View
A
Retailer 4
-
$2,916 SGD
View
A
Retailer 5
-
$2,989 SGD
View
A
Retailer 6
-
$2,990 SGD
View
B+
Retailer 7
-
$3,123 SGD
View
B+
Retailer 8
-
$3,129 SGD
View
B+
Retailer 9
-
$3,288 SGD
View
B+
Retailer 10
-
$3,399 SGD
View
B+
Retailer 11
-
$3,483 SGD
View
B+
Retailer 12
-
$3,649 SGD
View
B
Retailer 13
-
$5,224 SGD
View
Most Expensive
B
NZ Jewellers
1d7e74f0-7637-4c67-8077-76cf2e13601e · Nov 5
$6,252 SGD
$4,895 USD
View
13 more retailers have this diamond
Prices start from $2,701 SGDSave up to $3,551 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
1.05ct Round
$2,701 SGD