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Cushion|Natural|GIA

1.00ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2231437679

Certificate GIA 2231437679

Diamond specifications and retailer prices

From $4,261 AUD
$2,993 USD
As of November 1, 2026
Save $4,083 AUD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,344 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231437679. Listed at 15 retailers as of November 1, 2026, with prices from $4,261 to $8,344, a $4,083 spread on the same certified stone. MOH London lists it at $8,344. 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

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231437679
Dimensions8.09 × 5.21 × 3.31 mm
L/W Ratio1.55
Cert comments
NO BGM-Additional clouds are not shown.
Key to symbols
Cloud, Indented Natural
Top View
8.09 mm5.21 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231437679
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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 1
Current: $8,344 AUD|Low: $3,741 AUD|High: $8,445 AUD|Avg: $5,126 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$3,753 AUD
Retailer 4$4,261 AUD
Retailer 12$4,429 AUD
Retailer 9$4,605 AUD
Retailer 3$4,805 AUD
Retailer 5$4,867 AUD
Retailer 10$4,990 AUD
Retailer 2$5,215 AUD
Retailer 11$5,350 AUD
Retailer 7$5,842 AUD
Retailer 6$6,133 AUD
MOH London$8,344 AUD

34 data points across 12 retailers

15 retailers$4,261 AUD to $8,344 AUD

Retailer 1
-
$3,753 AUD
₹251,089 INR
Price last confirmed 9 days ago
Retailer 2
-
$4,093 AUD
$2,875 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$4,261 AUD
$2,993 USD
View
B+
Retailer 4
-
$4,429 AUD
$3,111 USD
View
B+
Retailer 5
-
$4,605 AUD
$3,235 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,805 AUD
$3,375 USD
View
B+
Retailer 7
-
$4,867 AUD
£2,692 GBP
View
Retailer 8
-
$4,990 AUD
$3,505 USD
View
Price last confirmed 25 days ago
B
Retailer 9
-
$5,196 AUD
$3,650 USD
View
B+
Retailer 10
-
$5,215 AUD
£2,884 GBP
View
Retailer 11
-
$5,350 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
$5,465 AUD
$3,839 USD
View
B
Retailer 13
-
$5,842 AUD
€3,908 EUR
View
B
Retailer 14
-
$6,133 AUD
ZAR 69,599 ZAR
View
Most Expensive
B
MOH London
83D39CF69 · Nov 1
$8,344 AUD
£4,615 GBP
View
14 more retailers have this diamond
Prices start from $4,261 AUDSave up to $4,083 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+
1.00ct Cushion
$4,261 AUD