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Cushion|Natural|GIA

3.00ct D SI1 Cushion Natural Diamond

D/SI1 • GIA 6552900078

Certificate GIA 6552900078

Diamond specifications and retailer prices

From HK$315,698 HKD
As of November 6, 2026
Save HK$88,680 HKD (22%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$404,378 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3ct natural cushion diamond

This 3ct natural cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 6552900078. Listed at 6 retailers as of October 31, 2026, with prices from HK$315,698 to HK$404,378, a HK$88,680 spread on the same certified stone. Blue Nile lists it at HK$404,378. 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

3.00
Carat
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552900078
Dimensions10.09 × 7.32 × 4.93 mm
L/W Ratio1.38
Top View
10.09 mm7.32 mm3.00 ctD / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552900078
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.3%

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$404,378 HKD|Low: HK$315,698 HKD|High: HK$404,378 HKD|Avg: HK$342,443 HKD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3HK$315,698 HKD
Retailer 2HK$316,717 HKD
Retailer 6HK$328,364 HKD
Retailer 5HK$348,067 HKD
Retailer 4HK$370,505 HKD
Blue NileHK$404,378 HKD

38 data points across 6 retailers

6 retailersHK$315,698 HKD to HK$404,378 HKD

B+
Cheapest Retailer
-
HK$315,698 HKD
B+
Retailer 2
-
HK$316,717 HKD
View
B+
Retailer 3
-
HK$328,364 HKD
View
Final sale: no returns
Retailer 4
-
HK$348,067 HKD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
HK$370,505 HKD
View
Most Expensive
B
Blue Nile
30380820 · Oct 31
HK$404,378 HKD
$51,596 USD
View
5 more retailers have this diamond
Prices start from HK$315,698 HKDSave up to HK$88,680 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+
3.00ct Cushion
HK$315,698 HKD