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Cushion|Natural|GIA

1.05ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 1242087047

Certificate GIA 1242087047

Diamond specifications and retailer prices

From €1,329 EUR
HK$11,600 HKD
As of October 31, 2026
Save €1,868 EUR (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €3,197 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct 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 1242087047. Listed at 17 retailers as of October 31, 2026, with prices from €1,329 to €3,197, a €1,868 spread on the same certified stone. MOH London lists it at €3,197. 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

1.05
Carat
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242087047
Dimensions5.70 × 5.63 × 3.85 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.70 mm5.63 mm1.05 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242087047
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.3%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: €3,197 EUR|Low: €1,318 EUR|High: €3,563 EUR|Avg: €2,011 EUR|-10.3%
MOH London
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 13€1,329 EUR
Retailer 9€1,495 EUR
Retailer 2€1,612 EUR
Retailer 12€1,685 EUR
Retailer 4€1,718 EUR
Retailer 16€1,719 EUR
Retailer 3€1,752 EUR
Retailer 10€1,780 EUR
Retailer 17€1,801 EUR
Retailer 8€1,851 EUR
Retailer 7€1,906 EUR
Retailer 6€1,936 EUR
Retailer 11€2,059 EUR
Retailer 15€2,263 EUR
Retailer 14€2,514 EUR
Retailer 5€2,853 EUR
MOH London€3,197 EUR

18 data points across 17 retailers

17 retailers€1,329 EUR to €3,197 EUR

A
Cheapest Retailer
-
€1,329 EUR
HK$11,600 HKD
Retailer 2
-
€1,495 EUR
$1,670 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
€1,612 EUR
View
A
Retailer 4
-
€1,685 EUR
$1,882 USD
View
Final sale: no returns
A
Retailer 5
-
€1,718 EUR
$1,919 USD
View
A
Retailer 6
-
€1,719 EUR
$1,920 USD
View
A
Retailer 7
-
€1,752 EUR
$1,957 USD
View
A
Retailer 8
-
€1,780 EUR
£1,566 GBP
View
A
Retailer 9
-
€1,801 EUR
£1,585 GBP
View
A
Retailer 10
-
€1,851 EUR
SGD 2,794 SGD
View
A
Retailer 11
-
€1,906 EUR
$2,129 USD
View
A
Retailer 12
-
€1,936 EUR
$2,163 USD
View
A
Retailer 13
-
€2,059 EUR
$2,300 USD
View
A
Retailer 14
-
€2,263 EUR
ZAR 40,843 ZAR
View
B+
Retailer 15
-
€2,514 EUR
View
B+
Retailer 16
-
€2,853 EUR
$3,188 USD
View
Most Expensive
B+
MOH London
CECF82447 · Nov 1
€3,197 EUR
£2,812 GBP
View
16 more retailers have this diamond
Prices start from €1,329 EURSave up to €1,868 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
1.05ct Cushion
€1,329 EUR