Heart|Natural|GIA

1.31ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 6535430494

Certificate GIA 6535430494

Diamond specifications and retailer prices

From HK$32,321 HKD
As of November 5, 2026
Save HK$27,454 HKD (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$68,248 HKD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.31ct natural heart diamond

This 1.31ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6535430494. Listed at 5 retailers as of November 4, 2026, with a 85% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.31
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535430494
Dimensions7.42 × 6.15 × 3.91 mm
L/W Ratio1.21
Top View
7.42 mm6.15 mm1.31 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535430494
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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 5
Current: HK$32,321 HKD|Low: HK$29,759 HKD|High: HK$62,715 HKD|Avg: HK$38,860 HKD|-6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 7HK$32,157 HKD
Retailer 1HK$32,321 HKD
Retailer 2HK$33,066 HKD
Retailer 3HK$34,289 HKD
Retailer 5HK$36,491 HKD
Retailer 10HK$37,102 HKD
Retailer 9HK$39,305 HKD
Retailer 8HK$39,320 HKD
Retailer 6HK$39,344 HKD
Retailer 11HK$40,841 HKD
Retailer 4HK$59,776 HKD

14 data points across 11 retailers

5 retailersHK$32,321 HKD to HK$59,776 HKD

B+
Cheapest Retailer
-
HK$32,321 HKD
Retailer 2
-
HK$35,488 HKD
View
Price last confirmed 46 days ago
Retailer 3
-
HK$36,491 HKD
View
Price last confirmed 10 days ago
B
Retailer 4
-
HK$59,776 HKD
View
Most Expensive
NZ Jewellers
bf7311fe-6661-4c0b-acfa-094dc50d6ea3 · Sep 21
HK$68,248 HKD
$8,708 USD
View
Price last confirmed 46 days ago
4 more retailers have this diamond
Prices start from HK$32,321 HKDSave up to HK$27,454 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+
1.31ct Heart
HK$32,321 HKD