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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 2436211625

Certificate GIA 2436211625

Diamond specifications and retailer prices

From HK$31,901 HKD
$4,066 USD
As of October 30, 2026
Save HK$38,296 HKD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$70,197 HKD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2436211625. Listed at 19 retailers as of October 28, 2026, with prices from HK$31,901 to HK$70,197, a HK$38,296 spread on the same certified stone. Queensmith lists it at HK$70,197. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.11°
Pavilion angle31.22°
OriginNatural
Grading LabGIA
CertificateGIA 2436211625
Dimensions6.51 × 6.17 × 4.30 mm
L/W Ratio1.06
Top View
6.51 mm6.17 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2436211625
Side View
Table 60.0%Crown 38.11°Girdle: ThickPavilion 31.22°Culet: NoneDepth 69.7%

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: Oct 30
Current: HK$70,197 HKD|Low: HK$30,943 HKD|High: HK$70,446 HKD|Avg: HK$43,034 HKD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 5HK$31,901 HKD
Retailer 13HK$33,156 HKD
Retailer 14HK$33,752 HKD
Retailer 6HK$34,348 HKD
Retailer 4HK$34,560 HKD
Retailer 12HK$36,569 HKD
Retailer 9HK$37,883 HKD
Retailer 10HK$38,703 HKD
Retailer 2HK$40,296 HKD
Retailer 3HK$40,694 HKD
Retailer 8HK$45,680 HKD
Retailer 7HK$49,620 HKD
Retailer 11HK$64,637 HKD
QueensmithHK$70,197 HKD

35 data points across 14 retailers

19 retailersHK$31,901 HKD to HK$70,197 HKD

A
Cheapest Retailer
-
HK$31,901 HKD
$4,066 USD
A
Retailer 2
-
HK$33,156 HKD
$4,226 USD
View
A
Retailer 3
-
HK$33,752 HKD
$4,302 USD
View
Final sale: no returns
A
Retailer 4
-
HK$34,348 HKD
$4,378 USD
View
A
Retailer 5
-
HK$34,560 HKD
$4,405 USD
View
A
Retailer 6
-
HK$36,303 HKD
$4,627 USD
View
A
Retailer 7
-
HK$36,569 HKD
$4,661 USD
View
A
Retailer 8
-
HK$37,883 HKD
£3,802 GBP
View
A
Retailer 9
-
HK$38,703 HKD
$4,933 USD
View
A
Retailer 10
-
HK$39,464 HKD
$5,030 USD
View
A
Retailer 11
-
HK$39,464 HKD
$5,030 USD
View
A
Retailer 12
-
HK$40,296 HKD
£4,044 GBP
View
Retailer 13
-
HK$40,694 HKD
A$7,980 AUD
View
Price last confirmed 22 days ago
A
Retailer 14
-
HK$40,798 HKD
$5,200 USD
View
Retailer 15
-
HK$44,556 HKD
$5,679 USD
View
Price last confirmed 17 days ago
A
Retailer 16
-
HK$45,680 HKD
€5,545 EUR
View
B+
Retailer 17
-
HK$49,620 HKD
ZAR 102,172 ZAR
View
B+
Retailer 18
-
HK$64,637 HKD
£6,487 GBP
View
Most Expensive
B
Queensmith
2436211625 · Oct 28
HK$70,197 HKD
£7,045 GBP
View
18 more retailers have this diamond
Prices start from HK$31,901 HKDSave up to HK$38,296 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$31,901 HKD