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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 6512878823

Certificate GIA 6512878823

Diamond specifications and retailer prices

From $745 CAD
As of November 6, 2026
Save $1,107 CAD (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,852 CAD at MOH London · As of November 4, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6512878823. Listed at 8 retailers as of November 4, 2026, with prices from $745 to $1,852, a $1,107 spread on the same certified stone. MOH London lists it at $1,852. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6512878823
Dimensions5.72 × 5.71 × 3.81 mm
L/W Ratio1.00
Top View
5.72 mm5.71 mm0.90 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6512878823
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.8%

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 6
Current: $1,852 CAD|Low: $745 CAD|High: $1,877 CAD|Avg: $1,219 CAD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$745 CAD
Retailer 6$864 CAD
Retailer 4$1,061 CAD
Retailer 5$1,214 CAD
Retailer 3$1,431 CAD
MOH London$1,852 CAD

43 data points across 6 retailers

8 retailers$745 CAD to $1,852 CAD

A
Cheapest Retailer
-
$745 CAD
B+
Retailer 2
-
$864 CAD
View
B+
Retailer 3
-
$1,061 CAD
View
B+
Retailer 4
-
$1,072 CAD
View
B+
Retailer 5
-
$1,214 CAD
View
B+
Retailer 6
-
$1,428 CAD
View
B+
Retailer 7
-
$1,431 CAD
View
Most Expensive
B
MOH London
92853AFB3 · Nov 4
$1,852 CAD
£1,037 GBP
View
7 more retailers have this diamond
Prices start from $745 CADSave up to $1,107 CAD

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
$745 CAD