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Cushion|Natural|GIA

1.30ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 1558712621

Certificate GIA 1558712621

Diamond specifications and retailer prices

From €1,773 EUR
As of November 6, 2026
Save €2,002 EUR (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €3,774 EUR at MOH London · As of November 7, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 1558712621. Listed at 23 retailers as of November 6, 2026, with prices from €1,773 to €3,774, a €2,002 spread on the same certified stone. MOH London lists it at €3,774. 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

1.30
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle37°
Pavilion angle36.1°
OriginNatural
Grading LabGIA
CertificateGIA 1558712621
Dimensions6.25 × 6.10 × 4.15 mm
L/W Ratio1.02
Girdle conditionFaceted
Top View
6.25 mm6.10 mm1.30 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1558712621
Side View
Table 64.0%Crown 37°Girdle: MED-THKPavilion 36.1°Culet: NoneDepth 68.0%

Caratlytics Score

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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: Nov 6
Current: €3,774 EUR|Low: €1,639 EUR|High: €3,966 EUR|Avg: €2,393 EUR|-4.6%
MOH London
Retailer 2
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Retailer 5
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Retailer 8
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Retailer 10
Retailer 11
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Retailer 17
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Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
November 7, 2026
Retailer 14€1,639 EUR
Retailer 10€1,690 EUR
Retailer 24€1,773 EUR
Retailer 22€1,811 EUR
Retailer 23€1,835 EUR
Retailer 21€1,975 EUR
Retailer 17€2,035 EUR
Retailer 13€2,115 EUR
Retailer 11€2,119 EUR
Retailer 12€2,132 EUR
Retailer 2€2,148 EUR
Retailer 25€2,159 EUR
Retailer 4€2,266 EUR
Retailer 7€2,266 EUR
Retailer 20€2,291 EUR
Retailer 16€2,306 EUR
Retailer 5€2,347 EUR
Retailer 19€2,357 EUR
Retailer 15€2,427 EUR
Retailer 18€2,504 EUR
Retailer 9€2,561 EUR
Retailer 3€2,646 EUR
Retailer 6€2,690 EUR
Retailer 8€2,721 EUR
MOH London€3,774 EUR

21 data points across 25 retailers

23 retailers€1,773 EUR to €3,774 EUR

Retailer 1
-
€1,639 EUR
Price last confirmed 18 days ago
Retailer 2
-
€1,690 EUR
View
Price last confirmed 18 days ago
A
Retailer 3
-
€1,773 EUR
View
A
Retailer 4
-
€1,811 EUR
View
Final sale: no returns
A
Retailer 5
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€1,835 EUR
View
A
Retailer 6
-
€1,975 EUR
View
Retailer 7
-
€2,035 EUR
View
Price last confirmed 23 days ago
A
Retailer 8
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€2,115 EUR
View
A
Retailer 9
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€2,148 EUR
View
A
Retailer 10
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€2,159 EUR
View
A
Retailer 11
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€2,252 EUR
View
A
Retailer 12
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€2,266 EUR
View
A
Retailer 13
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€2,266 EUR
View
A
Retailer 14
-
€2,291 EUR
View
Retailer 15
-
€2,306 EUR
View
Price last confirmed 17 days ago
A
Retailer 16
-
€2,347 EUR
View
Retailer 17
-
€2,357 EUR
View
Retailer 18
-
€2,427 EUR
View
Price last confirmed 17 days ago
Retailer 19
-
€2,504 EUR
View
Price last confirmed 37 days ago
A
Retailer 20
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€2,646 EUR
View
A
Retailer 21
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€2,690 EUR
View
A
Retailer 22
-
€2,721 EUR
View
Most Expensive
B+
MOH London
0FE1DCF9E · Nov 7
€3,774 EUR
£3,318 GBP
View
22 more retailers have this diamond
Prices start from €1,773 EURSave up to €2,002 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
1.30ct Cushion
€1,773 EUR