Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 6565516311

Certificate GIA 6565516311

Diamond specifications and retailer prices

From €3,135 EUR
$3,502 USD
As of October 26, 2026
Save €1,102 EUR (26%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €5,826 EUR at MOH London · As of October 25, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6565516311. Listed at 9 retailers as of October 26, 2026, with a 35% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565516311
Dimensions9.04 × 5.87 × 2.52 mm
L/W Ratio1.54
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Pinpoint
Top View
9.04 mm5.87 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565516311
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 42.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: €5,826 EUR|Low: €2,943 EUR|High: €5,888 EUR|Avg: €3,815 EUR|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 27, 2026
Retailer 7€3,135 EUR
Retailer 6€3,211 EUR
Retailer 9€3,325 EUR
Retailer 2€3,404 EUR
Retailer 5€3,479 EUR
Retailer 8€3,610 EUR
Retailer 10€3,727 EUR
Retailer 3€3,916 EUR
Retailer 4€4,237 EUR
MOH London€5,826 EUR

20 data points across 10 retailers

9 retailers€3,135 EUR to €4,237 EUR

B
Cheapest Retailer
-
€3,135 EUR
$3,502 USD
Retailer 2
-
€3,325 EUR
$3,715 USD
View
Price last confirmed 5 days ago
B
Retailer 3
-
€3,404 EUR
£2,995 GBP
View
Retailer 4
-
€3,479 EUR
$3,887 USD
View
Price last confirmed 7 days ago
Retailer 5
-
€3,610 EUR
$4,034 USD
View
Price last confirmed 8 days ago
Retailer 6
-
€3,727 EUR
A$6,405 AUD
View
Price last confirmed 24 days ago
C
Retailer 7
-
€3,916 EUR
View
C
Retailer 8
-
€4,237 EUR
ZAR 76,464 ZAR
View
Most Expensive
MOH London
5C5BD7DDD · Oct 25
€5,826 EUR
£5,125 GBP
View
Price last confirmed 8 days ago
8 more retailers have this diamond
Prices start from €3,135 EURSave up to €1,102 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
€3,135 EUR