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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 €1,535 EUR
HK$13,400 HKD
As of November 1, 2026
Save €2,557 EUR (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,092 EUR 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 €1,535 to €4,092, a €2,557 spread on the same certified stone. Queensmith lists it at €4,092. 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: €4,092 EUR|Low: €1,524 EUR|High: €4,126 EUR|Avg: €2,330 EUR|+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€1,535 EUR
Retailer 2€1,633 EUR
Retailer 7€1,810 EUR
Retailer 6€1,890 EUR
Retailer 3€1,918 EUR
Retailer 4€1,934 EUR
Retailer 8€1,997 EUR
Retailer 15€2,048 EUR
Retailer 5€2,138 EUR
Retailer 14€2,172 EUR
Retailer 10€2,229 EUR
Retailer 13€2,517 EUR
Retailer 9€2,556 EUR
Retailer 11€3,588 EUR
Queensmith€4,092 EUR

25 data points across 15 retailers

18 retailers€1,535 EUR to €4,092 EUR

A
Cheapest Retailer
-
€1,535 EUR
HK$13,400 HKD
A
Retailer 2
-
€1,633 EUR
₹173,723 INR
View
A
Retailer 3
-
€1,810 EUR
SGD 2,732 SGD
View
A
Retailer 4
-
€1,890 EUR
$2,111 USD
View
Final sale: no returns
A
Retailer 5
-
€1,918 EUR
$2,143 USD
View
A
Retailer 6
-
€1,934 EUR
$2,161 USD
View
A
Retailer 7
-
€1,949 EUR
$2,177 USD
View
A
Retailer 8
-
€1,951 EUR
$2,180 USD
View
A
Retailer 9
-
€1,997 EUR
£1,757 GBP
View
A
Retailer 10
-
€2,048 EUR
$2,288 USD
View
B+
Retailer 11
-
€2,138 EUR
SGD 3,228 SGD
View
B+
Retailer 12
-
€2,172 EUR
$2,427 USD
View
B+
Retailer 13
-
€2,229 EUR
£1,961 GBP
View
B+
Retailer 14
-
€2,517 EUR
ZAR 45,428 ZAR
View
B+
Retailer 15
-
€2,556 EUR
View
Retailer 16
-
€2,559 EUR
A$4,398 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
€3,588 EUR
£3,156 GBP
View
Most Expensive
B
Queensmith
7561400377 · Oct 28
€4,092 EUR
£3,600 GBP
View
17 more retailers have this diamond
Prices start from €1,535 EURSave up to €2,557 EUR

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
€1,535 EUR