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Cushion|Natural|GIA

1.00ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6315745344

Certificate GIA 6315745344

Diamond specifications and retailer prices

From $1,269 SGD
As of November 4, 2026
Save $1,516 SGD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,785 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6315745344. Listed at 15 retailers as of November 4, 2026, with prices from $1,269 to $2,785, a $1,516 spread on the same certified stone. MOH London lists it at $2,785. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6315745344
Dimensions5.79 × 5.48 × 3.74 mm
L/W Ratio1.06
Top View
5.79 mm5.48 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6315745344
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.3%

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: $2,785 SGD|Low: $1,269 SGD|High: $3,257 SGD|Avg: $1,813 SGD|-14.3%
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
Retailer 14
Retailer 15
November 6, 2026
Retailer 11$1,269 SGD
Retailer 7$1,284 SGD
Retailer 15$1,323 SGD
Retailer 5$1,371 SGD
Retailer 13$1,382 SGD
Retailer 2$1,479 SGD
Retailer 4$1,547 SGD
Retailer 12$1,557 SGD
Retailer 14$1,558 SGD
Retailer 9$1,712 SGD
Retailer 10$1,861 SGD
Retailer 6$2,089 SGD
Retailer 8$2,120 SGD
Retailer 3$2,165 SGD
MOH London$2,785 SGD

33 data points across 15 retailers

15 retailers$1,269 SGD to $2,785 SGD

A
Cheapest Retailer
-
$1,269 SGD
A
Retailer 2
-
$1,284 SGD
View
A
Retailer 3
-
$1,323 SGD
View
A
Retailer 4
-
$1,371 SGD
View
Retailer 5
-
$1,382 SGD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$1,479 SGD
View
B+
Retailer 7
-
$1,547 SGD
View
B+
Retailer 8
-
$1,557 SGD
View
B+
Retailer 9
-
$1,558 SGD
View
A
Retailer 10
-
$1,712 SGD
View
B+
Retailer 11
-
$1,861 SGD
View
B+
Retailer 12
-
$2,089 SGD
View
B+
Retailer 13
-
$2,120 SGD
View
B+
Retailer 14
-
$2,165 SGD
View
Most Expensive
B
MOH London
9B2A01CB9 · Nov 4
$2,785 SGD
£1,711 GBP
View
14 more retailers have this diamond
Prices start from $1,269 SGDSave up to $1,516 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
$1,269 SGD