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Cushion|Natural|GIA

1.05ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6542758912

Certificate GIA 6542758912

Diamond specifications and retailer prices

From €1,415 EUR
HK$12,400 HKD
As of November 2, 2026
Save €1,760 EUR (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €3,175 EUR at MOH London · As of November 2, 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 F 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 6542758912. Listed at 22 retailers as of November 2, 2026, with prices from €1,415 to €3,175, a €1,760 spread on the same certified stone. MOH London lists it at €3,175. 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
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542758912
Dimensions5.92 × 5.90 × 3.88 mm
L/W Ratio1.00
Top View
5.92 mm5.90 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542758912
Side View
Table 64.0%CrownGirdle: STK-VTKPavilion 40.6°Culet: NoneDepth 65.9%

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 2
Current: €3,175 EUR|Low: €1,392 EUR|High: €3,260 EUR|Avg: €1,955 EUR|-2.6%
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
Retailer 18
Retailer 19
Retailer 20
November 3, 2026
Retailer 17€1,415 EUR
Retailer 3€1,515 EUR
Retailer 4€1,555 EUR
Retailer 6€1,583 EUR
Retailer 15€1,610 EUR
Retailer 13€1,650 EUR
Retailer 9€1,674 EUR
Retailer 12€1,708 EUR
Retailer 14€1,718 EUR
Retailer 16€1,739 EUR
Retailer 18€1,768 EUR
Retailer 8€1,783 EUR
Retailer 20€1,807 EUR
Retailer 10€1,884 EUR
Retailer 2€1,972 EUR
Retailer 7€1,986 EUR
Retailer 5€2,228 EUR
Retailer 19€2,474 EUR
Retailer 11€2,904 EUR
MOH London€3,175 EUR

19 data points across 20 retailers

22 retailers€1,415 EUR to €3,175 EUR

A
Cheapest Retailer
-
€1,415 EUR
HK$12,400 HKD
A
Retailer 2
-
€1,515 EUR
$1,699 USD
View
Final sale: no returns
A
Retailer 3
-
€1,555 EUR
$1,744 USD
View
A
Retailer 4
-
€1,583 EUR
$1,775 USD
View
A
Retailer 5
-
€1,610 EUR
$1,806 USD
View
A
Retailer 6
-
€1,650 EUR
View
A
Retailer 7
-
€1,674 EUR
$1,877 USD
View
A
Retailer 8
-
€1,708 EUR
$1,916 USD
View
A
Retailer 9
-
€1,718 EUR
A$2,965 AUD
View
A
Retailer 10
-
€1,739 EUR
$1,950 USD
View
A
Retailer 11
-
€1,768 EUR
£1,561 GBP
View
A
Retailer 12
-
€1,783 EUR
$2,000 USD
View
A
Retailer 13
-
€1,807 EUR
$2,027 USD
View
Retailer 14
-
€1,884 EUR
$2,113 USD
View
Price last confirmed 13 days ago
A
Retailer 15
-
€1,972 EUR
£1,741 GBP
View
A
Retailer 16
-
€1,986 EUR
$2,228 USD
View
B+
Retailer 17
-
€2,027 EUR
A$3,498 AUD
View
B+
Retailer 18
-
€2,228 EUR
ZAR 40,368 ZAR
View
Retailer 19
-
€2,287 EUR
A$3,947 AUD
View
Price last confirmed 28 days ago
B+
Retailer 20
-
€2,474 EUR
View
Retailer 21
-
€2,904 EUR
$3,257 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
31D2616AE · Nov 2
€3,175 EUR
£2,804 GBP
View
21 more retailers have this diamond
Prices start from €1,415 EURSave up to €1,760 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
€1,415 EUR