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Cushion|Natural|GIA

1.21ct I SI2 Cushion Natural Diamond

ID • I/SI2 • GIA 1558540135

Certificate GIA 1558540135

Diamond specifications and retailer prices

From €1,306 EUR
HK$11,400 HKD
As of November 1, 2026
Save €1,757 EUR (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €3,064 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558540135. Listed at 11 retailers as of November 1, 2026, with prices from €1,306 to €3,064, a €1,757 spread on the same certified stone. MOH London lists it at €3,064. 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

1.21
Carat
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1558540135
Dimensions7.33 × 5.46 × 3.68 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.33 mm5.46 mm1.21 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1558540135
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.4%

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: €3,064 EUR|Low: €1,295 EUR|High: €3,120 EUR|Avg: €1,882 EUR|-1.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4€1,306 EUR
Retailer 3€1,389 EUR
Retailer 6€1,409 EUR
Retailer 7€1,749 EUR
Retailer 8€1,822 EUR
Retailer 9€1,826 EUR
Retailer 2€1,905 EUR
Retailer 5€2,389 EUR
MOH London€3,064 EUR

37 data points across 9 retailers

11 retailers€1,306 EUR to €3,064 EUR

A
Cheapest Retailer
-
€1,306 EUR
HK$11,400 HKD
A
Retailer 2
-
€1,389 EUR
₹147,760 INR
View
A
Retailer 3
-
€1,409 EUR
SGD 2,127 SGD
View
A
Retailer 4
-
€1,647 EUR
$1,840 USD
View
Retailer 5
-
€1,749 EUR
$1,954 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
€1,808 EUR
A$3,108 AUD
View
A
Retailer 7
-
€1,822 EUR
SGD 2,750 SGD
View
A
Retailer 8
-
€1,826 EUR
$2,040 USD
View
A
Retailer 9
-
€1,905 EUR
£1,676 GBP
View
B+
Retailer 10
-
€2,389 EUR
View
Most Expensive
B
MOH London
7EE6C21E5 · Nov 1
€3,064 EUR
£2,695 GBP
View
10 more retailers have this diamond
Prices start from €1,306 EURSave up to €1,757 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
1.21ct Cushion
€1,306 EUR