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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6522662093

Certificate GIA 6522662093

Diamond specifications and retailer prices

From $2,174 SGD
As of November 4, 2026
Save $2,954 SGD (58%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,383 SGD at NZ Jewellers · As of September 19, 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 6522662093. Listed at 21 retailers as of November 2, 2026, with a 136% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceStrong
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6522662093
Dimensions6.49 × 6.46 × 4.05 mm
L/W Ratio1.00
Top View
6.49 mm6.46 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6522662093
Side View
Table 56.0%Crown 35.5°Girdle: MD-MDPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $6,121 SGD|Low: $2,157 SGD|High: $6,121 SGD|Avg: $3,391 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
Retailer 15
November 6, 2026
Retailer 11$2,174 SGD
Retailer 6$2,645 SGD
Retailer 13$2,700 SGD
Retailer 15$2,714 SGD
Retailer 5$2,768 SGD
Retailer 4$2,928 SGD
Retailer 12$2,931 SGD
Retailer 7$3,025 SGD
Retailer 2$3,163 SGD
Retailer 3$3,377 SGD
Retailer 9$3,573 SGD
Retailer 14$3,603 SGD
Retailer 8$3,626 SGD
Retailer 10$5,128 SGD
NZ Jewellers$6,121 SGD

42 data points across 15 retailers

21 retailers$2,174 SGD to $5,128 SGD

A
Cheapest Retailer
-
$2,174 SGD
A
Retailer 2
-
$2,645 SGD
View
B+
Retailer 3
-
$2,700 SGD
View
Final sale: no returns
A
Retailer 4
-
$2,714 SGD
View
A
Retailer 5
-
$2,768 SGD
View
Retailer 6
-
$2,928 SGD
View
Price last confirmed 15 days ago
Retailer 7
-
$2,928 SGD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$2,931 SGD
View
Retailer 9
-
$3,025 SGD
View
Price last confirmed 10 days ago
Retailer 10
-
$3,063 SGD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$3,163 SGD
View
Retailer 12
-
$3,377 SGD
View
Price last confirmed 68 days ago
Retailer 13
-
$3,377 SGD
View
Price last confirmed 16 days ago
Retailer 14
-
$3,523 SGD
View
Price last confirmed 45 days ago
B+
Retailer 15
-
$3,573 SGD
View
Retailer 16
-
$3,603 SGD
View
Price last confirmed 30 days ago
B+
Retailer 17
-
$3,626 SGD
View
B
Retailer 18
-
$5,128 SGD
View
Retailer 19
-
$6,121 SGD
View
Price last confirmed 17 days ago
Retailer 20
-
$6,383 SGD
View
Price last confirmed 66 days ago
Most Expensive
NZ Jewellers
02c4d13c-d5dd-4510-8058-1e666f6883bb · Sep 19
$6,383 SGD
$4,997 USD
View
Price last confirmed 47 days ago
20 more retailers have this diamond
Prices start from $2,174 SGDSave up to $2,954 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
$2,174 SGD