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Heart|Natural|GIA

1.20ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6233852681

Certificate GIA 6233852681

Diamond specifications and retailer prices

From HK$9,123 HKD
As of November 6, 2026
Save HK$13,175 HKD (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$28,810 HKD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6233852681. Listed at 9 retailers as of November 4, 2026, with a 144% 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.03°
OriginNatural
Grading LabGIA
CertificateGIA 6233852681
Dimensions6.29 × 7.39 × 4.29 mm
L/W Ratio1.17
Top View
6.29 mm7.39 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6233852681
Side View
Table 62.0%CrownGirdle: STK-VTKPavilion 38.03°Culet: NoneDepth 58.0%

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 6
Current: HK$12,618 HKD|Low: HK$8,723 HKD|High: HK$23,567 HKD|Avg: HK$15,643 HKD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2HK$9,123 HKD
Retailer 5HK$11,936 HKD
Retailer 1HK$12,618 HKD
Retailer 6HK$13,026 HKD
Retailer 8HK$16,717 HKD
Retailer 7HK$18,543 HKD
Retailer 4HK$22,070 HKD
Retailer 3HK$22,297 HKD

26 data points across 8 retailers

9 retailersHK$9,123 HKD to HK$22,297 HKD

A
Cheapest Retailer
-
HK$9,123 HKD
A
Retailer 2
-
HK$11,936 HKD
View
Retailer 3
-
HK$12,360 HKD
View
Price last confirmed 36 days ago
A
Retailer 4
-
HK$12,618 HKD
View
A
Retailer 5
-
HK$13,026 HKD
View
Retailer 6
-
HK$13,324 HKD
View
Price last confirmed 36 days ago
B+
Retailer 7
-
HK$22,070 HKD
View
B
Retailer 8
-
HK$22,297 HKD
View
Most Expensive
NZ Jewellers
09b9ea23-6187-426f-9559-f62db5f6cb1f · Sep 29
HK$28,810 HKD
$3,676 USD
View
Price last confirmed 37 days ago
8 more retailers have this diamond
Prices start from HK$9,123 HKDSave up to HK$13,175 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
1.20ct Heart
HK$9,123 HKD