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Cushion|Natural|GIA

1.00ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6561091209

Certificate GIA 6561091209

Diamond specifications and retailer prices

From $4,026 AUD
$2,828 USD
As of November 1, 2026
Save $3,492 AUD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,518 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 6561091209. Listed at 14 retailers as of November 1, 2026, with prices from $4,026 to $7,518, a $3,492 spread on the same certified stone. MOH London lists it at $7,518. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561091209
Dimensions5.60 × 5.47 × 3.77 mm
L/W Ratio1.02
Top View
5.60 mm5.47 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561091209
Side View
Table 64.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 68.9%

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: $7,518 AUD|Low: $3,802 AUD|High: $7,608 AUD|Avg: $4,803 AUD|-1.2%
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 12$4,026 AUD
Retailer 9$4,029 AUD
Retailer 10$4,097 AUD
Retailer 4$4,104 AUD
Retailer 8$4,107 AUD
Retailer 11$4,148 AUD
Retailer 5$4,385 AUD
Retailer 2$4,697 AUD
Retailer 3$4,802 AUD
Retailer 7$5,262 AUD
Retailer 6$5,525 AUD
MOH London$7,518 AUD

37 data points across 12 retailers

14 retailers$4,026 AUD to $7,518 AUD

B+
Cheapest Retailer
-
$4,026 AUD
$2,828 USD
B+
Retailer 2
-
$4,029 AUD
$2,830 USD
View
B+
Retailer 3
-
$4,097 AUD
$2,878 USD
View
B+
Retailer 4
-
$4,104 AUD
$2,883 USD
View
B+
Retailer 5
-
$4,107 AUD
$2,885 USD
View
B+
Retailer 6
-
$4,148 AUD
$2,914 USD
View
Final sale: no returns
B+
Retailer 7
-
$4,385 AUD
£2,425 GBP
View
B+
Retailer 8
-
$4,662 AUD
SGD 4,425 SGD
View
B+
Retailer 9
-
$4,697 AUD
£2,598 GBP
View
B+
Retailer 10
-
$4,699 AUD
$3,301 USD
View
Retailer 11
-
$4,802 AUD
View
Price last confirmed 25 days ago
B
Retailer 12
-
$5,262 AUD
€3,520 EUR
View
B
Retailer 13
-
$5,525 AUD
ZAR 62,697 ZAR
View
Most Expensive
B
MOH London
D9960B846 · Nov 1
$7,518 AUD
£4,158 GBP
View
13 more retailers have this diamond
Prices start from $4,026 AUDSave up to $3,492 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
$4,026 AUD