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Heart|Natural|GIA

0.85ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 7542270922

Certificate GIA 7542270922

Diamond specifications and retailer prices

From HK$4,519 HKD
As of November 1, 2026
Save HK$6,302 HKD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$21,263 HKD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.85ct natural heart diamond

This 0.85ct natural heart sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7542270922. Listed at 14 retailers as of November 1, 2026, with a 139% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.85
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle37.9°
OriginNatural
Grading LabGIA
CertificateGIA 7542270922
Dimensions5.78 × 6.44 × 3.85 mm
L/W Ratio1.11
Girdle conditionFaceted
Top View
5.78 mm6.44 mm0.85 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7542270922
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 37.9°Culet: NoneDepth 59.8%

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$7,096 HKD|Low: HK$4,519 HKD|High: HK$12,057 HKD|Avg: HK$7,698 HKD|-5.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 5HK$4,519 HKD
Retailer 9HK$5,453 HKD
Retailer 8HK$5,806 HKD
Retailer 7HK$5,982 HKD
Retailer 2HK$6,561 HKD
Retailer 1HK$7,096 HKD
Retailer 11HK$7,532 HKD
Retailer 3HK$8,007 HKD
Retailer 10HK$9,147 HKD
Retailer 12HK$9,640 HKD
Retailer 4HK$9,783 HKD
Retailer 6HK$10,821 HKD

30 data points across 12 retailers

14 retailersHK$4,519 HKD to HK$10,821 HKD

A
Cheapest Retailer
-
HK$4,519 HKD
A
Retailer 2
-
HK$5,453 HKD
$695 USD
View
Final sale: no returns
A
Retailer 3
-
HK$5,806 HKD
$740 USD
View
A
Retailer 4
-
HK$5,982 HKD
€726 EUR
View
Retailer 5
-
HK$6,561 HKD
SGD 1,130 SGD
View
Price last confirmed 10 days ago
A
Retailer 6
-
HK$7,096 HKD
£712 GBP
View
A
Retailer 7
-
HK$7,532 HKD
$960 USD
View
A
Retailer 8
-
HK$8,007 HKD
SGD 1,379 SGD
View
A
Retailer 9
-
HK$9,147 HKD
ZAR 18,834 ZAR
View
B+
Retailer 10
-
HK$9,527 HKD
A$1,868 AUD
View
Retailer 11
-
HK$9,640 HKD
$1,229 USD
View
Price last confirmed 10 days ago
Retailer 12
-
HK$9,783 HKD
A$1,918 AUD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
HK$10,821 HKD
£1,086 GBP
View
Most Expensive
NZ Jewellers
7681b851-dd8a-4608-be12-c6db9e8b3316 · Sep 25
HK$21,263 HKD
$2,710 USD
View
Price last confirmed 38 days ago
13 more retailers have this diamond
Prices start from HK$4,519 HKDSave up to HK$6,302 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
0.85ct Heart
HK$4,519 HKD