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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7423988908

Certificate GIA 7423988908

Diamond specifications and retailer prices

From $2,583 SGD
As of November 6, 2026
Save $4,674 SGD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,256 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7423988908. Listed at 18 retailers as of November 5, 2026, with prices from $2,583 to $7,256, a $4,674 spread on the same certified stone. NZ Jewellers lists it at $7,256. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7423988908
Dimensions6.54 × 6.51 × 4.06 mm
L/W Ratio1.00
Top View
6.54 mm6.51 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7423988908
Side View
Table 56.0%Crown 35°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

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: $7,256 SGD|Low: $2,409 SGD|High: $7,256 SGD|Avg: $4,174 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6$2,583 SGD
Retailer 7$2,841 SGD
Retailer 8$2,902 SGD
Retailer 10$3,289 SGD
Retailer 3$3,652 SGD
Retailer 9$3,888 SGD
Retailer 5$3,905 SGD
Retailer 2$4,236 SGD
Retailer 4$6,065 SGD
NZ Jewellers$7,256 SGD

43 data points across 10 retailers

18 retailers$2,583 SGD to $7,256 SGD

A
Cheapest Retailer
-
$2,583 SGD
A
Retailer 2
-
$2,841 SGD
View
A
Retailer 3
-
$2,842 SGD
View
A
Retailer 4
-
$2,902 SGD
View
Final sale: no returns
A
Retailer 5
-
$3,034 SGD
View
B+
Retailer 6
-
$3,145 SGD
View
Retailer 7
-
$3,145 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$3,289 SGD
View
B+
Retailer 9
-
$3,615 SGD
View
B+
Retailer 10
-
$3,615 SGD
View
B+
Retailer 11
-
$3,629 SGD
View
B+
Retailer 12
-
$3,652 SGD
View
B+
Retailer 13
-
$3,730 SGD
View
Retailer 14
-
$3,888 SGD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$3,905 SGD
View
B+
Retailer 16
-
$4,236 SGD
View
B
Retailer 17
-
$6,065 SGD
View
Most Expensive
B
NZ Jewellers
96e44543-1306-4d89-b4a9-f2289f918478 · Nov 5
$7,256 SGD
$5,681 USD
View
17 more retailers have this diamond
Prices start from $2,583 SGDSave up to $4,674 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
$2,583 SGD