CaratHunter
Plans
Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 3545886515

Certificate GIA 3545886515

Diamond specifications and retailer prices

From $1,164 SGD
As of November 6, 2026
Save $1,592 SGD (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,756 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545886515. Listed at 20 retailers as of November 4, 2026, with prices from $1,164 to $2,756, a $1,592 spread on the same certified stone. MOH London lists it at $2,756. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle38.5°
OriginNatural
Grading LabGIA
CertificateGIA 3545886515
Dimensions5.86 × 5.61 × 3.76 mm
L/W Ratio1.04
Top View
5.86 mm5.61 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3545886515
Side View
Table 63.0%CrownGirdle: THK-ETKPavilion 38.5°Culet: NoneDepth 67.0%

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: $2,756 SGD|Low: $1,164 SGD|High: $2,848 SGD|Avg: $1,731 SGD|-2.8%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 15$1,164 SGD
Retailer 7$1,375 SGD
Retailer 18$1,392 SGD
Retailer 10$1,435 SGD
Retailer 8$1,444 SGD
Retailer 17$1,532 SGD
Retailer 3$1,581 SGD
Retailer 11$1,611 SGD
Retailer 9$1,626 SGD
Retailer 16$1,672 SGD
Retailer 12$1,693 SGD
Retailer 14$1,772 SGD
Retailer 5$1,793 SGD
Retailer 13$1,840 SGD
Retailer 2$2,099 SGD
Retailer 6$2,110 SGD
Retailer 4$2,481 SGD
MOH London$2,756 SGD

23 data points across 18 retailers

20 retailers$1,164 SGD to $2,756 SGD

A
Cheapest Retailer
-
$1,164 SGD
Retailer 2
-
$1,375 SGD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$1,392 SGD
View
Final sale: no returns
Retailer 4
-
$1,435 SGD
View
Price last confirmed 8 days ago
Retailer 5
-
$1,444 SGD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$1,532 SGD
View
A
Retailer 7
-
$1,581 SGD
View
A
Retailer 8
-
$1,611 SGD
View
Retailer 9
-
$1,626 SGD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$1,672 SGD
View
A
Retailer 11
-
$1,693 SGD
View
B+
Retailer 12
-
$1,772 SGD
View
Price last confirmed 3 days ago
A
Retailer 13
-
$1,793 SGD
View
A
Retailer 14
-
$1,840 SGD
View
A
Retailer 15
-
$1,997 SGD
View
Retailer 16
-
$2,094 SGD
View
Price last confirmed 34 days ago
A
Retailer 17
-
$2,099 SGD
View
Retailer 18
-
$2,110 SGD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
$2,481 SGD
View
Most Expensive
B+
MOH London
12F93DD09 · Nov 4
$2,756 SGD
£1,693 GBP
View
19 more retailers have this diamond
Prices start from $1,164 SGDSave up to $1,592 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 Cushion
$1,164 SGD