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Cushion|Natural|GIA

1.21ct F SI1 Cushion Natural Diamond

GD • F/SI1 • GIA 1555552860

Certificate GIA 1555552860

Diamond specifications and retailer prices

From €2,900 EUR
As of November 4, 2026
Save €3,520 EUR (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €6,420 EUR at MOH London · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555552860. Listed at 19 retailers as of November 2, 2026, with prices from €2,900 to €6,420, a €3,520 spread on the same certified stone. MOH London lists it at €6,420. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555552860
Dimensions7.35 × 5.50 × 3.68 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Cavity, Needle, Indented Natural
Top View
7.35 mm5.50 mm1.21 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555552860
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €6,420 EUR|Low: €2,877 EUR|High: €6,428 EUR|Avg: €4,155 EUR|+0.6%
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
November 5, 2026
Retailer 14€2,900 EUR
Retailer 11€3,022 EUR
Retailer 5€3,438 EUR
Retailer 2€3,521 EUR
Retailer 4€3,542 EUR
Retailer 8€3,654 EUR
Retailer 12€3,744 EUR
Retailer 15€3,839 EUR
Retailer 9€3,888 EUR
Retailer 3€3,971 EUR
Retailer 7€4,056 EUR
Retailer 6€4,081 EUR
Retailer 10€4,327 EUR
Retailer 13€4,718 EUR
Retailer 16€6,256 EUR
MOH London€6,420 EUR

24 data points across 16 retailers

19 retailers€2,900 EUR to €6,420 EUR

B+
Cheapest Retailer
-
€2,900 EUR
B+
Retailer 2
-
€3,022 EUR
View
Retailer 3
-
€3,438 EUR
View
Price last confirmed 9 days ago
B
Retailer 4
-
€3,521 EUR
View
B
Retailer 5
-
€3,642 EUR
View
B
Retailer 6
-
€3,645 EUR
View
Retailer 7
-
€3,654 EUR
View
Price last confirmed 11 days ago
B
Retailer 8
-
€3,744 EUR
View
Retailer 9
-
€3,839 EUR
View
Price last confirmed 9 days ago
B
Retailer 10
-
€3,888 EUR
View
B
Retailer 11
-
€3,893 EUR
View
B
Retailer 12
-
€3,971 EUR
View
B
Retailer 13
-
€4,056 EUR
View
B
Retailer 14
-
€4,081 EUR
View
Retailer 15
-
€4,263 EUR
View
Price last confirmed 29 days ago
B
Retailer 16
-
€4,327 EUR
View
B
Retailer 17
-
€4,718 EUR
View
Retailer 18
-
€6,256 EUR
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
59AF216A7 · Nov 2
€6,420 EUR
£5,644 GBP
View
18 more retailers have this diamond
Prices start from €2,900 EURSave up to €3,520 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.

B+
1.21ct Cushion
€2,900 EUR