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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 1379395697

Certificate GIA 1379395697

Diamond specifications and retailer prices

From $1,924 AUD
As of November 6, 2026
Save $2,211 AUD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,135 AUD 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 1379395697. Listed at 9 retailers as of November 4, 2026, with prices from $1,924 to $4,135, a $2,211 spread on the same certified stone. MOH London lists it at $4,135. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1379395697
Dimensions5.66 × 5.21 × 3.64 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Top View
5.66 mm5.21 mm0.90 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1379395697
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 69.8%

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: $4,135 AUD|Low: $1,987 AUD|High: $4,196 AUD|Avg: $2,634 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 4$1,987 AUD
Retailer 7$2,006 AUD
Retailer 6$2,016 AUD
Retailer 5$2,388 AUD
Retailer 2$2,624 AUD
Retailer 3$3,214 AUD
MOH London$4,135 AUD

43 data points across 7 retailers

9 retailers$1,924 AUD to $4,135 AUD

B+
Cheapest Retailer
-
$1,924 AUD
B+
Retailer 2
-
$1,959 AUD
View
Retailer 3
-
$1,987 AUD
View
Price last confirmed 17 days ago
B+
Retailer 4
-
$2,006 AUD
View
B+
Retailer 5
-
$2,016 AUD
View
B
Retailer 6
-
$2,388 AUD
View
B
Retailer 7
-
$2,624 AUD
View
B
Retailer 8
-
$3,214 AUD
View
Most Expensive
B
MOH London
6991929C8 · Nov 4
$4,135 AUD
£2,237 GBP
View
8 more retailers have this diamond
Prices start from $1,924 AUDSave up to $2,211 AUD

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
$1,924 AUD