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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 $956 NZD
As of November 6, 2026
Save $1,420 NZD (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,376 NZD 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 $956 to $2,376, a $1,420 spread on the same certified stone. MOH London lists it at $2,376. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,376 NZD|Low: $956 NZD|High: $2,408 NZD|Avg: $1,560 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 3$956 NZD
Retailer 6$1,108 NZD
Retailer 5$1,360 NZD
Retailer 2$1,557 NZD
Retailer 4$1,835 NZD
MOH London$2,376 NZD

44 data points across 6 retailers

8 retailers$956 NZD to $2,376 NZD

A
Cheapest Retailer
-
$956 NZD
B+
Retailer 2
-
$1,108 NZD
View
B+
Retailer 3
-
$1,360 NZD
View
B+
Retailer 4
-
$1,375 NZD
View
B+
Retailer 5
-
$1,557 NZD
View
B+
Retailer 6
-
$1,831 NZD
View
B+
Retailer 7
-
$1,835 NZD
View
Most Expensive
B
MOH London
92853AFB3 · Nov 4
$2,376 NZD
£1,037 GBP
View
7 more retailers have this diamond
Prices start from $956 NZDSave up to $1,420 NZD

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
$956 NZD