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Heart|Natural|GIA

1.51ct L SI1 Heart Natural Diamond

EX • L/SI1 • GIA 6551311460

Certificate GIA 6551311460

Diamond specifications and retailer prices

From HK$14,444 HKD
As of November 6, 2026
Save HK$9,037 HKD (38%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$40,222 HKD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded L 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 6551311460. Listed at 12 retailers as of November 5, 2026, with a 63% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6551311460
Dimensions7.32 × 8.27 × 4.48 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.32 mm8.27 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6551311460
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 54.2%

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$40,222 HKD|Low: HK$14,342 HKD|High: HK$40,222 HKD|Avg: HK$20,439 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5HK$14,444 HKD
Retailer 2HK$15,455 HKD
Retailer 10HK$18,026 HKD
Retailer 7HK$19,123 HKD
Retailer 8HK$19,241 HKD
Retailer 9HK$19,241 HKD
Retailer 3HK$20,354 HKD
Retailer 6HK$22,203 HKD
Retailer 4HK$23,481 HKD
NZ JewellersHK$40,222 HKD

46 data points across 10 retailers

12 retailersHK$14,444 HKD to HK$23,481 HKD

A
Cheapest Retailer
-
HK$14,444 HKD
A
Retailer 2
-
HK$15,455 HKD
View
B+
Retailer 3
-
HK$18,026 HKD
View
B+
Retailer 4
-
HK$19,123 HKD
View
Retailer 5
-
HK$19,241 HKD
View
Price last confirmed 21 days ago
Retailer 6
-
HK$19,241 HKD
View
Price last confirmed 19 days ago
Retailer 7
-
HK$20,126 HKD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
HK$20,354 HKD
View
B+
Retailer 9
-
HK$20,362 HKD
View
Retailer 10
-
HK$22,203 HKD
View
Price last confirmed 18 days ago
B
Retailer 11
-
HK$23,481 HKD
View
Most Expensive
NZ Jewellers
f404e1a2-cdbf-4ee4-ba0f-1532e6a78e46 · Oct 18
HK$40,222 HKD
$5,132 USD
View
Price last confirmed 19 days ago
11 more retailers have this diamond
Prices start from HK$14,444 HKDSave up to HK$9,037 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
1.51ct Heart
HK$14,444 HKD