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Heart|Natural|GIA

1.51ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6481518557

Certificate GIA 6481518557

Diamond specifications and retailer prices

From HK$52,166 HKD
As of November 4, 2026
Save HK$39,606 HKD (43%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$91,771 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded G 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 6481518557. Listed at 19 retailers as of November 4, 2026, with prices from HK$52,166 to HK$91,771, a HK$39,606 spread on the same certified stone. MOH London lists it at HK$91,771. 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

1.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6481518557
Dimensions7.15 × 6.78 × 4.48 mm
L/W Ratio1.05
Top View
7.15 mm6.78 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6481518557
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 66.0%

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 4
Current: HK$91,771 HKD|Low: HK$52,166 HKD|High: HK$93,005 HKD|Avg: HK$67,253 HKD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4HK$52,166 HKD
Retailer 11HK$55,207 HKD
Retailer 3HK$55,214 HKD
Retailer 12HK$55,677 HKD
Retailer 6HK$61,720 HKD
Retailer 2HK$61,876 HKD
Retailer 10HK$63,311 HKD
Retailer 9HK$63,326 HKD
Retailer 5HK$71,736 HKD
Retailer 7HK$80,553 HKD
Retailer 8HK$91,172 HKD
MOH LondonHK$91,771 HKD

36 data points across 12 retailers

19 retailersHK$52,166 HKD to HK$91,771 HKD

B+
Cheapest Retailer
-
HK$52,166 HKD
B+
Retailer 2
-
HK$52,471 HKD
View
B+
Retailer 3
-
HK$55,207 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$55,214 HKD
View
Retailer 5
-
HK$55,214 HKD
View
Price last confirmed 30 days ago
B+
Retailer 6
-
HK$55,677 HKD
View
B+
Retailer 7
-
HK$58,804 HKD
View
B+
Retailer 8
-
HK$61,720 HKD
View
B+
Retailer 9
-
HK$61,876 HKD
View
B
Retailer 10
-
HK$63,311 HKD
View
Retailer 11
-
HK$63,326 HKD
View
Price last confirmed 16 days ago
B
Retailer 12
-
HK$63,483 HKD
View
B
Retailer 13
-
HK$63,483 HKD
View
B
Retailer 14
-
HK$65,599 HKD
View
B
Retailer 15
-
HK$66,469 HKD
View
B
Retailer 16
-
HK$71,736 HKD
View
B
Retailer 17
-
HK$80,553 HKD
View
Retailer 18
-
HK$91,172 HKD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
7918798AC · Nov 4
HK$91,771 HKD
£9,220 GBP
View
18 more retailers have this diamond
Prices start from HK$52,166 HKDSave up to HK$39,606 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+
1.51ct Heart
HK$52,166 HKD