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Cushion|Natural|GIA

1.09ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 7568248235

Certificate GIA 7568248235

Diamond specifications and retailer prices

From €963 EUR
As of November 6, 2026
Save €212 EUR (18%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €1,175 EUR at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.09ct natural cushion diamond

This 1.09ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7568248235. Listed at 6 retailers as of November 5, 2026, with prices from €963 to €1,175, a €212 spread on the same certified stone. Blue Nile lists it at €1,175. 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

1.09
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7568248235
Dimensions5.77 × 5.67 × 3.83 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
5.77 mm5.67 mm1.09 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7568248235
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.5%

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 6
Current: €1,175 EUR|Low: €842 EUR|High: €1,232 EUR|Avg: €1,047 EUR|-4.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3€958 EUR
Retailer 6€963 EUR
Retailer 4€1,002 EUR
Retailer 2€1,061 EUR
Retailer 5€1,090 EUR
Blue Nile€1,175 EUR

40 data points across 6 retailers

6 retailers€963 EUR to €1,175 EUR

Retailer 1
-
€958 EUR
Price last confirmed 17 days ago
A
Retailer 2
-
€963 EUR
View
Final sale: no returns
B+
Retailer 3
-
€1,002 EUR
View
B+
Retailer 4
-
€1,061 EUR
View
B+
Retailer 5
-
€1,090 EUR
View
Most Expensive
B+
Blue Nile
30161417 · Nov 5
€1,175 EUR
$1,312 USD
View
5 more retailers have this diamond
Prices start from €963 EURSave up to €212 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
1.09ct Cushion
€963 EUR