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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6285677170

Certificate GIA 6285677170

Diamond specifications and retailer prices

From $691 SGD
As of November 6, 2026
Save $2,366 SGD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,057 SGD at Adiamor · As of November 5, 2026
View at Adiamor

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-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 6285677170. Listed at 16 retailers as of November 5, 2026, with prices from $691 to $3,057, a $2,366 spread on the same certified stone. Adiamor lists it at $3,057. 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

0.90
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6285677170
Dimensions5.26 × 5.21 × 3.84 mm
L/W Ratio1.01
Top View
5.26 mm5.21 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6285677170
Side View
Table 54.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 73.7%

Caratlytics Score

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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 6
Current: $691 SGD|Low: $691 SGD|High: $1,985 SGD|Avg: $1,292 SGD|-4.1%
Retailer 1
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 1$691 SGD
Retailer 2$738 SGD
Retailer 7$1,006 SGD
Retailer 4$1,014 SGD
Retailer 10$1,018 SGD
Retailer 14$1,028 SGD
Retailer 6$1,100 SGD
Retailer 15$1,138 SGD
Retailer 5$1,146 SGD
Retailer 11$1,206 SGD
Retailer 3$1,230 SGD
Retailer 9$1,424 SGD
Retailer 12$1,484 SGD
Retailer 13$1,853 SGD
Retailer 8$1,939 SGD

25 data points across 15 retailers

16 retailers$691 SGD to $3,057 SGD

A
Cheapest Retailer
-
$691 SGD
A
Retailer 2
-
$738 SGD
View
B+
Retailer 3
-
$1,006 SGD
View
Retailer 4
-
$1,014 SGD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$1,018 SGD
View
B+
Retailer 6
-
$1,028 SGD
View
B+
Retailer 7
-
$1,100 SGD
View
B+
Retailer 8
-
$1,138 SGD
View
B+
Retailer 9
-
$1,146 SGD
View
B+
Retailer 10
-
$1,206 SGD
View
B+
Retailer 11
-
$1,230 SGD
View
B+
Retailer 12
-
$1,424 SGD
View
B+
Retailer 13
-
$1,484 SGD
View
B
Retailer 14
-
$1,853 SGD
View
B
Retailer 15
-
$1,939 SGD
View
Most Expensive
B
Adiamor
D-51268865 · Nov 5
$3,057 SGD
$2,385 USD
View
15 more retailers have this diamond
Prices start from $691 SGDSave up to $2,366 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
0.90ct Cushion
$691 SGD