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Cushion|Natural|GIA

1.05ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1568010215

Certificate GIA 1568010215

Diamond specifications and retailer prices

From $1,335 SGD
As of November 5, 2026
Save $296 SGD (18%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,631 SGD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.05ct natural cushion diamond

This 1.05ct 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 1568010215. Listed at 5 retailers as of November 5, 2026, with prices from $1,335 to $1,631, a $296 spread on the same certified stone. GemTrove lists it at $1,631. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568010215
Dimensions5.67 × 5.63 × 3.81 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Natural
Top View
5.67 mm5.63 mm1.05 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1568010215
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.7%

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 5
Current: $1,631 SGD|Low: $1,335 SGD|High: $1,662 SGD|Avg: $1,494 SGD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3$1,335 SGD
Retailer 2$1,406 SGD
Retailer 5$1,452 SGD
Retailer 4$1,571 SGD
GemTrove$1,631 SGD

41 data points across 5 retailers

5 retailers$1,335 SGD to $1,631 SGD

A
Cheapest Retailer
-
$1,335 SGD
A
Retailer 2
-
$1,406 SGD
View
A
Retailer 3
-
$1,452 SGD
View
A
Retailer 4
-
$1,571 SGD
View
Most Expensive
B+
GemTrove
GT-N-01245895-98 · Nov 6
$1,631 SGD
A$1,958 AUD
View
4 more retailers have this diamond
Prices start from $1,335 SGDSave up to $296 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 Cushion
$1,335 SGD