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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 5366601877

Certificate GIA 5366601877

Diamond specifications and retailer prices

From $2,385 NZD
As of November 6, 2026
Save $2,754 NZD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,139 NZD at MOH London · As of November 2, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5366601877. Listed at 15 retailers as of November 2, 2026, with prices from $2,385 to $5,139, a $2,754 spread on the same certified stone. MOH London lists it at $5,139. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5366601877
Dimensions5.42 × 5.33 × 3.63 mm
L/W Ratio1.02
Top View
5.42 mm5.33 mm0.90 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5366601877
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 68.0%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $5,139 NZD|Low: $2,462 NZD|High: $5,200 NZD|Avg: $3,377 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 6$2,462 NZD
Retailer 8$2,498 NZD
Retailer 5$2,657 NZD
Retailer 9$2,823 NZD
Retailer 7$2,960 NZD
Retailer 2$3,252 NZD
Retailer 3$3,983 NZD
Retailer 4$4,295 NZD
MOH London$5,139 NZD

45 data points across 9 retailers

15 retailers$2,385 NZD to $5,139 NZD

B+
Cheapest Retailer
-
$2,385 NZD
B+
Retailer 2
-
$2,428 NZD
View
B
Retailer 3
-
$2,462 NZD
View
Retailer 4
-
$2,462 NZD
View
Price last confirmed 17 days ago
B
Retailer 5
-
$2,486 NZD
View
B
Retailer 6
-
$2,498 NZD
View
B
Retailer 7
-
$2,563 NZD
View
Retailer 8
-
$2,657 NZD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$2,823 NZD
View
B
Retailer 10
-
$2,960 NZD
View
B
Retailer 11
-
$3,252 NZD
View
B
Retailer 12
-
$3,983 NZD
View
C
Retailer 13
-
$4,192 NZD
View
B
Retailer 14
-
$4,295 NZD
View
Most Expensive
C
MOH London
74A7CDBAF · Nov 2
$5,139 NZD
£2,243 GBP
View
14 more retailers have this diamond
Prices start from $2,385 NZDSave up to $2,754 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.

B+
0.90ct Cushion
$2,385 NZD