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Cushion|Natural|GIA

1.05ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6511232942

Certificate GIA 6511232942

Diamond specifications and retailer prices

From €2,106 EUR
A$3,635 AUD
As of November 2, 2026
Save €1,175 EUR (36%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €3,282 EUR at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511232942. Listed at 6 retailers as of November 2, 2026, with prices from €2,106 to €3,282, a €1,175 spread on the same certified stone. 77 Diamonds lists it at €3,282. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.84°
OriginNatural
Grading LabGIA
CertificateGIA 6511232942
Dimensions7.08 × 5.45 × 3.69 mm
L/W Ratio1.30
Top View
7.08 mm5.45 mm1.05 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6511232942
Side View
Table 61.0%Crown 33.84°Girdle: MED-THKPavilionCulet: NoneDepth 67.7%

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 2
Current: €3,282 EUR|Low: €2,009 EUR|High: €3,289 EUR|Avg: €2,526 EUR|+2.1%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3€2,152 EUR
Retailer 2€2,209 EUR
77 Diamonds€3,282 EUR

36 data points across 3 retailers

6 retailers€2,106 EUR to €3,282 EUR

B+
Cheapest Retailer
-
€2,106 EUR
A$3,635 AUD
B
Retailer 2
-
€2,136 EUR
$2,396 USD
View
B
Retailer 3
-
€2,152 EUR
$2,414 USD
View
B
Retailer 4
-
€2,209 EUR
$2,478 USD
View
Final sale: no returns
B
Retailer 5
-
€2,282 EUR
$2,560 USD
View
Most Expensive
B
77 Diamonds
CUSDHY3SAUEMT · Nov 2
€3,282 EUR
£2,898 GBP
View
5 more retailers have this diamond
Prices start from €2,106 EURSave up to €1,175 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+
1.05ct Cushion
€2,106 EUR