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Cushion|Natural|GIA

3.09ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 6452601770

Certificate GIA 6452601770

Diamond specifications and retailer prices

From HK$298,072 HKD
As of November 6, 2026
Save HK$11,137 HKD (4%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$309,209 HKD at Adiamor · As of November 5, 2026
View at Adiamor

About this 3.09ct natural cushion diamond

This 3.09ct natural cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6452601770. Listed at 3 retailers as of November 5, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

3.09
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6452601770
Dimensions9.84 × 7.91 × 5.24 mm
L/W Ratio1.24
Top View
9.84 mm7.91 mm3.09 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 6452601770
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.2%

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 6
Current: HK$309,209 HKD|Low: HK$284,184 HKD|High: HK$337,165 HKD|Avg: HK$307,216 HKD
Adiamor
Retailer 2
Retailer 3
Retailer 4
October 19, 2026
Retailer 2HK$284,184 HKD
Retailer 3HK$298,072 HKD
AdiamorHK$309,209 HKD
Retailer 4HK$337,165 HKD

3 data points across 4 retailers

3 retailersHK$298,072 HKD to HK$309,209 HKD

Retailer 1
-
HK$284,184 HKD
Price last confirmed 10 days ago
B+
Retailer 2
-
HK$298,072 HKD
View
Most Expensive
B
Adiamor
D-77594562 · Nov 5
HK$309,209 HKD
$39,453 USD
View
2 more retailers have this diamond
Prices start from HK$298,072 HKDSave up to HK$11,137 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.

B+
3.09ct Cushion
HK$298,072 HKD