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Cushion|Natural|GIA

1.00ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 7561400377

Certificate GIA 7561400377

Diamond specifications and retailer prices

From $2,442 AUD
HK$13,400 HKD
As of November 1, 2026
Save $4,067 AUD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,509 AUD at Queensmith · As of October 28, 2026
View at Queensmith

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 7561400377. Listed at 18 retailers as of October 28, 2026, with prices from $2,442 to $6,509, a $4,067 spread on the same certified stone. Queensmith lists it at $6,509. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7561400377
Dimensions6.69 × 4.97 × 3.34 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.69 mm4.97 mm1.00 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7561400377
Side View
Table 66.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 67.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,509 AUD|Low: $2,424 AUD|High: $6,563 AUD|Avg: $3,705 AUD|+2.3%
Queensmith
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
November 2, 2026
Retailer 12$2,442 AUD
Retailer 10$2,598 AUD
Retailer 7$2,878 AUD
Retailer 6$3,005 AUD
Retailer 3$3,051 AUD
Retailer 4$3,076 AUD
Retailer 2$3,177 AUD
Retailer 15$3,257 AUD
Retailer 5$3,401 AUD
Retailer 14$3,455 AUD
Retailer 9$3,545 AUD
Retailer 13$4,003 AUD
Retailer 8$4,066 AUD
Retailer 11$5,706 AUD
Queensmith$6,509 AUD

25 data points across 15 retailers

18 retailers$2,442 AUD to $6,509 AUD

A
Cheapest Retailer
-
$2,442 AUD
HK$13,400 HKD
A
Retailer 2
-
$2,598 AUD
₹173,780 INR
View
A
Retailer 3
-
$2,878 AUD
SGD 2,732 SGD
View
A
Retailer 4
-
$3,005 AUD
$2,111 USD
View
Final sale: no returns
A
Retailer 5
-
$3,051 AUD
$2,143 USD
View
A
Retailer 6
-
$3,076 AUD
$2,161 USD
View
A
Retailer 7
-
$3,099 AUD
$2,177 USD
View
A
Retailer 8
-
$3,103 AUD
$2,180 USD
View
A
Retailer 9
-
$3,177 AUD
£1,757 GBP
View
A
Retailer 10
-
$3,257 AUD
$2,288 USD
View
B+
Retailer 11
-
$3,401 AUD
SGD 3,228 SGD
View
B+
Retailer 12
-
$3,455 AUD
$2,427 USD
View
B+
Retailer 13
-
$3,545 AUD
£1,961 GBP
View
B+
Retailer 14
-
$4,003 AUD
ZAR 45,428 ZAR
View
B+
Retailer 15
-
$4,066 AUD
€2,720 EUR
View
Retailer 16
-
$4,069 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
$5,706 AUD
£3,156 GBP
View
Most Expensive
B
Queensmith
7561400377 · Oct 28
$6,509 AUD
£3,600 GBP
View
17 more retailers have this diamond
Prices start from $2,442 AUDSave up to $4,067 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.

A
1.00ct Cushion
$2,442 AUD