CaratHunter
Plans
Cushion|Natural|GIA

1.30ct J SI2 Cushion Natural Diamond

J/SI2 • GIA 3565400574

Certificate GIA 3565400574

Diamond specifications and retailer prices

From HK$16,168 HKD
As of November 1, 2026
Save HK$7,055 HKD (30%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$23,223 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included) and certified by GIA 3565400574. Listed at 7 retailers as of October 31, 2026, with prices from HK$16,168 to HK$23,223, a HK$7,055 spread on the same certified stone. Blue Nile lists it at HK$23,223. 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

1.30
Carat
J
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3565400574
Dimensions7.92 × 5.59 × 3.69 mm
L/W Ratio1.42
Top View
7.92 mm5.59 mm1.30 ctJ / SI2
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3565400574
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.1%

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 1
Current: HK$23,223 HKD|Low: HK$16,068 HKD|High: HK$24,204 HKD|Avg: HK$19,393 HKD|-1.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3HK$16,168 HKD
Retailer 2HK$16,334 HKD
Retailer 5HK$17,229 HKD
Retailer 7HK$18,830 HKD
Retailer 8HK$19,613 HKD
Retailer 6HK$20,595 HKD
Retailer 4HK$22,515 HKD
Blue NileHK$23,223 HKD

30 data points across 8 retailers

7 retailersHK$16,168 HKD to HK$23,223 HKD

A
Cheapest Retailer
-
HK$16,168 HKD
A
Retailer 2
-
HK$16,334 HKD
₹198,280 INR
View
B+
Retailer 3
-
HK$17,229 HKD
$2,196 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$18,830 HKD
$2,400 USD
View
B+
Retailer 5
-
HK$20,595 HKD
$2,625 USD
View
B
Retailer 6
-
HK$22,515 HKD
SGD 3,878 SGD
View
Most Expensive
B
Blue Nile
30380811 · Oct 31
HK$23,223 HKD
$2,960 USD
View
6 more retailers have this diamond
Prices start from HK$16,168 HKDSave up to HK$7,055 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
1.30ct Cushion
HK$16,168 HKD