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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2564476979

Certificate GIA 2564476979

Diamond specifications and retailer prices

From $2,223 SGD
As of November 6, 2026
Save $2,941 SGD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,163 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct 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 2564476979. Listed at 14 retailers as of November 4, 2026, with prices from $2,223 to $5,163, a $2,941 spread on the same certified stone. MOH London lists it at $5,163. 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

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2564476979
Dimensions6.41 × 6.36 × 3.96 mm
L/W Ratio1.01
Top View
6.41 mm6.36 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564476979
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.0%

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: $5,163 SGD|Low: $2,223 SGD|High: $5,567 SGD|Avg: $3,283 SGD|-7.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 3$2,223 SGD
Retailer 2$2,234 SGD
Retailer 12$2,670 SGD
Retailer 7$2,825 SGD
Retailer 10$2,954 SGD
Retailer 11$2,957 SGD
Retailer 4$3,132 SGD
Retailer 5$3,132 SGD
Retailer 6$3,192 SGD
Retailer 9$3,477 SGD
Retailer 8$3,606 SGD
Retailer 13$4,311 SGD
MOH London$5,163 SGD

22 data points across 13 retailers

14 retailers$2,223 SGD to $5,163 SGD

A
Cheapest Retailer
-
$2,223 SGD
A
Retailer 2
-
$2,234 SGD
View
A
Retailer 3
-
$2,670 SGD
View
A
Retailer 4
-
$2,825 SGD
View
A
Retailer 5
-
$2,954 SGD
View
B+
Retailer 6
-
$2,957 SGD
View
Retailer 7
-
$3,132 SGD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
$3,132 SGD
View
B+
Retailer 9
-
$3,192 SGD
View
B+
Retailer 10
-
$3,477 SGD
View
Retailer 11
-
$3,588 SGD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$3,606 SGD
View
B+
Retailer 13
-
$4,311 SGD
View
Most Expensive
B
MOH London
50E22FE5A · Nov 4
$5,163 SGD
£3,183 GBP
View
13 more retailers have this diamond
Prices start from $2,223 SGDSave up to $2,941 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
1.00ct Round
$2,223 SGD