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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1548725237

Certificate GIA 1548725237

Diamond specifications and retailer prices

From $2,549 SGD
As of November 6, 2026
Save $4,601 SGD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,150 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 1548725237. Listed at 18 retailers as of November 5, 2026, with prices from $2,549 to $7,150, a $4,601 spread on the same certified stone. NZ Jewellers lists it at $7,150. 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
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1548725237
Dimensions6.44 × 6.48 × 4.08 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Knot, Needle
Top View
6.44 mm6.48 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1548725237
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.1%

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: $3,272 SGD|Low: $2,518 SGD|High: $6,063 SGD|Avg: $3,597 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 8$2,549 SGD
Retailer 11$2,799 SGD
Retailer 9$2,804 SGD
Retailer 10$2,859 SGD
Retailer 3$3,242 SGD
Retailer 1$3,272 SGD
Retailer 4$3,598 SGD
Retailer 2$3,831 SGD
Retailer 7$3,845 SGD
Retailer 5$4,174 SGD
Retailer 6$5,975 SGD

41 data points across 11 retailers

18 retailers$2,549 SGD to $7,150 SGD

A
Cheapest Retailer
-
$2,549 SGD
A
Retailer 2
-
$2,799 SGD
View
A
Retailer 3
-
$2,804 SGD
View
A
Retailer 4
-
$2,859 SGD
View
Final sale: no returns
B+
Retailer 5
-
$3,099 SGD
View
Retailer 6
-
$3,099 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,242 SGD
View
B+
Retailer 8
-
$3,272 SGD
View
B+
Retailer 9
-
$3,564 SGD
View
B+
Retailer 10
-
$3,564 SGD
View
B+
Retailer 11
-
$3,575 SGD
View
B+
Retailer 12
-
$3,598 SGD
View
B+
Retailer 13
-
$3,679 SGD
View
Retailer 14
-
$3,831 SGD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$3,845 SGD
View
B+
Retailer 16
-
$4,174 SGD
View
B
Retailer 17
-
$5,975 SGD
View
Most Expensive
B
NZ Jewellers
c21700ea-8b83-4934-b62a-871d0c649982 · Nov 5
$7,150 SGD
$5,598 USD
View
17 more retailers have this diamond
Prices start from $2,549 SGDSave up to $4,601 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
$2,549 SGD