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Cushion|Natural|GIA

0.90ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2427371288

Certificate GIA 2427371288

Diamond specifications and retailer prices

From $2,517 AUD
$1,764 USD
As of November 2, 2026
Save $3,613 AUD (59%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,130 AUD at Moon Ocean · As of November 2, 2026
View at Moon Ocean

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2427371288. Listed at 22 retailers as of November 2, 2026, with prices from $2,517 to $6,130, a $3,613 spread on the same certified stone. Moon Ocean lists it at $6,130. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.90
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2427371288
Dimensions6.38 × 4.91 × 3.25 mm
L/W Ratio1.30
Top View
6.38 mm4.91 mm0.90 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2427371288
Side View
Table 64.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 66.2%

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 2
Current: $6,130 AUD|Low: $2,517 AUD|High: $6,166 AUD|Avg: $3,484 AUD|-0.6%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 12$2,517 AUD
Retailer 9$2,573 AUD
Retailer 4$2,607 AUD
Retailer 11$2,616 AUD
Retailer 16$2,640 AUD
Retailer 7$2,715 AUD
Retailer 19$2,932 AUD
Retailer 15$3,158 AUD
Retailer 20$3,171 AUD
Retailer 6$3,329 AUD
Retailer 3$3,353 AUD
Retailer 21$3,353 AUD
Retailer 13$3,467 AUD
Retailer 5$3,467 AUD
Retailer 14$3,641 AUD
Retailer 8$3,848 AUD
Retailer 2$4,072 AUD
Retailer 10$4,577 AUD
Retailer 18$4,699 AUD
Retailer 17$5,581 AUD
Moon Ocean$6,130 AUD

42 data points across 21 retailers

22 retailers$2,517 AUD to $6,130 AUD

B+
Cheapest Retailer
-
$2,517 AUD
$1,764 USD
Final sale: no returns
B+
Retailer 2
-
$2,573 AUD
$1,803 USD
View
B+
Retailer 3
-
$2,607 AUD
$1,827 USD
View
B+
Retailer 4
-
$2,616 AUD
$1,833 USD
View
B+
Retailer 5
-
$2,640 AUD
$1,850 USD
View
B+
Retailer 6
-
$2,715 AUD
$1,903 USD
View
B+
Retailer 7
-
$2,932 AUD
$2,055 USD
View
B
Retailer 8
-
$3,158 AUD
$2,213 USD
View
B
Retailer 9
-
$3,171 AUD
$2,222 USD
View
B
Retailer 10
-
$3,329 AUD
$2,333 USD
View
B
Retailer 11
-
$3,353 AUD
$2,350 USD
View
B
Retailer 12
-
$3,353 AUD
$2,350 USD
View
B
Retailer 13
-
$3,467 AUD
£1,913 GBP
View
B
Retailer 14
-
$3,467 AUD
$2,430 USD
View
B
Retailer 15
-
$3,641 AUD
$2,552 USD
View
B
Retailer 16
-
$3,671 AUD
CA$3,573 CAD
View
B
Retailer 17
-
$3,848 AUD
$2,697 USD
View
B
Retailer 18
-
$4,072 AUD
€2,718 EUR
View
B
Retailer 19
-
$4,577 AUD
$3,208 USD
View
B
Retailer 20
-
$4,699 AUD
ZAR 53,197 ZAR
View
B
Retailer 21
-
$5,581 AUD
£3,080 GBP
View
Most Expensive
B
Moon Ocean
NVN-995D74AD5-288 · Nov 2
$6,130 AUD
£3,383 GBP
View
21 more retailers have this diamond
Prices start from $2,517 AUDSave up to $3,613 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
$2,517 AUD