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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 HK$8,425 HKD
As of November 6, 2026
Save HK$1,857 HKD (18%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$10,283 HKD 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 HK$8,425 to HK$10,283, a HK$1,857 spread on the same certified stone. Blue Nile lists it at HK$10,283. 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: HK$10,283 HKD|Low: HK$7,367 HKD|High: HK$10,784 HKD|Avg: HK$9,155 HKD|-4.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3HK$8,386 HKD
Retailer 6HK$8,425 HKD
Retailer 4HK$8,770 HKD
Retailer 2HK$9,287 HKD
Retailer 5HK$9,538 HKD
Blue NileHK$10,283 HKD

41 data points across 6 retailers

6 retailersHK$8,425 HKD to HK$10,283 HKD

Retailer 1
-
HK$8,386 HKD
Price last confirmed 16 days ago
A
Retailer 2
-
HK$8,425 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$8,770 HKD
View
B+
Retailer 4
-
HK$9,287 HKD
View
B+
Retailer 5
-
HK$9,538 HKD
View
Most Expensive
B+
Blue Nile
30161417 · Nov 5
HK$10,283 HKD
$1,312 USD
View
5 more retailers have this diamond
Prices start from HK$8,425 HKDSave up to HK$1,857 HKD

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
HK$8,425 HKD