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Cushion|Natural|GIA

0.90ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 6371888168

Certificate GIA 6371888168

Diamond specifications and retailer prices

From $2,777 AUD
$1,951 USD
As of October 29, 2026
Save $1,257 AUD (31%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,034 AUD at Yorxs · As of October 29, 2026
View at Yorxs

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6371888168. Listed at 14 retailers as of October 29, 2026, with prices from $2,777 to $4,034, a $1,257 spread on the same certified stone. Yorxs lists it at $4,034. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6371888168
Dimensions5.76 × 5.29 × 3.58 mm
L/W Ratio1.09
Top View
5.76 mm5.29 mm0.90 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6371888168
Side View
Table 66.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 67.6%

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: Oct 29
Current: $3,423 AUD|Low: $2,444 AUD|High: $4,654 AUD|Avg: $3,294 AUD|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Yorxs
October 30, 2026
Retailer 10$2,444 AUD
Retailer 5$2,777 AUD
Retailer 3$2,915 AUD
Retailer 7$2,926 AUD
Retailer 8$3,009 AUD
Retailer 2$3,092 AUD
Retailer 4$3,243 AUD
Retailer 1$3,423 AUD
Retailer 6$3,700 AUD
Yorxs$4,034 AUD
Retailer 9$4,654 AUD

42 data points across 11 retailers

14 retailers$2,777 AUD to $4,034 AUD

B+
Cheapest Retailer
-
$2,777 AUD
$1,951 USD
B+
Retailer 2
-
$2,793 AUD
$1,962 USD
View
B+
Retailer 3
-
$2,803 AUD
$1,969 USD
View
B+
Retailer 4
-
$2,915 AUD
SGD 2,767 SGD
View
B+
Retailer 5
-
$2,926 AUD
$2,055 USD
View
B+
Retailer 6
-
$3,009 AUD
$2,114 USD
View
B
Retailer 7
-
$3,092 AUD
$2,172 USD
View
B
Retailer 8
-
$3,243 AUD
$2,278 USD
View
B
Retailer 9
-
$3,410 AUD
CA$3,326 CAD
View
B+
Retailer 10
-
$3,423 AUD
£1,893 GBP
View
B
Retailer 11
-
$3,700 AUD
View
B
Retailer 12
-
$3,946 AUD
$2,772 USD
View
B
Retailer 13
-
$3,991 AUD
$2,804 USD
View
Most Expensive
B
Yorxs
518485706 · Oct 29
$4,034 AUD
€2,699 EUR
View
13 more retailers have this diamond
Prices start from $2,777 AUDSave up to $1,257 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
$2,777 AUD