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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 $1,378 SGD
As of November 6, 2026
Save $304 SGD (18%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,681 SGD 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 $1,378 to $1,681, a $304 spread on the same certified stone. Blue Nile lists it at $1,681. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,681 SGD|Low: $1,205 SGD|High: $1,763 SGD|Avg: $1,497 SGD|-4.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3$1,371 SGD
Retailer 6$1,378 SGD
Retailer 4$1,434 SGD
Retailer 2$1,519 SGD
Retailer 5$1,560 SGD
Blue Nile$1,681 SGD

41 data points across 6 retailers

6 retailers$1,378 SGD to $1,681 SGD

Retailer 1
-
$1,371 SGD
Price last confirmed 16 days ago
A
Retailer 2
-
$1,378 SGD
View
Final sale: no returns
B+
Retailer 3
-
$1,434 SGD
View
B+
Retailer 4
-
$1,519 SGD
View
B+
Retailer 5
-
$1,560 SGD
View
Most Expensive
B+
Blue Nile
30161417 · Nov 5
$1,681 SGD
$1,312 USD
View
5 more retailers have this diamond
Prices start from $1,378 SGDSave up to $304 SGD

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
$1,378 SGD