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Cushion|Natural|GIA

1.05ct K SI1 Cushion Natural Diamond

ID • K/SI1 • GIA 17172162

Certificate GIA 17172162

Diamond specifications and retailer prices

From $2,753 SGD
As of November 6, 2026
Save $3,282 SGD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,035 SGD at MOH London · As of November 4, 2026
View at MOH London

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 17172162. Listed at 11 retailers as of November 4, 2026, with prices from $2,753 to $6,035, a $3,282 spread on the same certified stone. MOH London lists it at $6,035. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 17172162
Dimensions6.08 × 5.83 × 3.54 mm
L/W Ratio1.04
Culet sizeNone
Top View
6.08 mm5.83 mm1.05 ctK / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 17172162
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,035 SGD|Low: $2,753 SGD|High: $6,125 SGD|Avg: $3,846 SGD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$2,753 SGD
Retailer 5$2,826 SGD
Retailer 6$3,128 SGD
Retailer 3$3,655 SGD
Retailer 2$4,034 SGD
Retailer 4$4,215 SGD
MOH London$6,035 SGD

45 data points across 7 retailers

11 retailers$2,753 SGD to $6,035 SGD

B+
Cheapest Retailer
-
$2,753 SGD
B+
Retailer 2
-
$2,826 SGD
View
B+
Retailer 3
-
$2,826 SGD
View
B
Retailer 4
-
$2,950 SGD
View
B
Retailer 5
-
$3,018 SGD
View
Retailer 6
-
$3,128 SGD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$3,391 SGD
View
B
Retailer 8
-
$3,655 SGD
View
B
Retailer 9
-
$4,034 SGD
View
B
Retailer 10
-
$4,215 SGD
View
Most Expensive
B
MOH London
AF6439998 · Nov 4
$6,035 SGD
£3,708 GBP
View
10 more retailers have this diamond
Prices start from $2,753 SGDSave up to $3,282 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.

B+
1.05ct Cushion
$2,753 SGD