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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 $2,193 SGD
HK$13,400 HKD
As of November 1, 2026
Save $3,652 SGD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,845 SGD 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 $2,193 to $5,845, a $3,652 spread on the same certified stone. Queensmith lists it at $5,845. 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: $5,845 SGD|Low: $2,176 SGD|High: $5,894 SGD|Avg: $3,327 SGD|+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$2,193 SGD
Retailer 10$2,333 SGD
Retailer 7$2,585 SGD
Retailer 6$2,699 SGD
Retailer 3$2,740 SGD
Retailer 4$2,763 SGD
Retailer 2$2,853 SGD
Retailer 15$2,925 SGD
Retailer 5$3,054 SGD
Retailer 14$3,103 SGD
Retailer 9$3,183 SGD
Retailer 13$3,595 SGD
Retailer 8$3,651 SGD
Retailer 11$5,124 SGD
Queensmith$5,845 SGD

25 data points across 15 retailers

18 retailers$2,193 SGD to $5,845 SGD

A
Cheapest Retailer
-
$2,193 SGD
HK$13,400 HKD
A
Retailer 2
-
$2,333 SGD
₹173,780 INR
View
A
Retailer 3
-
$2,585 SGD
View
A
Retailer 4
-
$2,699 SGD
$2,111 USD
View
Final sale: no returns
A
Retailer 5
-
$2,740 SGD
$2,143 USD
View
A
Retailer 6
-
$2,763 SGD
$2,161 USD
View
A
Retailer 7
-
$2,783 SGD
$2,177 USD
View
A
Retailer 8
-
$2,787 SGD
$2,180 USD
View
A
Retailer 9
-
$2,853 SGD
£1,757 GBP
View
A
Retailer 10
-
$2,925 SGD
$2,288 USD
View
B+
Retailer 11
-
$3,054 SGD
View
B+
Retailer 12
-
$3,103 SGD
$2,427 USD
View
B+
Retailer 13
-
$3,183 SGD
£1,961 GBP
View
B+
Retailer 14
-
$3,595 SGD
ZAR 45,428 ZAR
View
B+
Retailer 15
-
$3,651 SGD
€2,720 EUR
View
Retailer 16
-
$3,654 SGD
A$4,398 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
$5,124 SGD
£3,156 GBP
View
Most Expensive
B
Queensmith
7561400377 · Oct 28
$5,845 SGD
£3,600 GBP
View
17 more retailers have this diamond
Prices start from $2,193 SGDSave up to $3,652 SGD

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
$2,193 SGD