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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 1555675433

Certificate GIA 1555675433

Diamond specifications and retailer prices

From $4,109 SGD
HK$25,100 HKD
As of November 1, 2026
Save $5,474 SGD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,583 SGD at NZ Jewellers · As of October 30, 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 F 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 1555675433. Listed at 20 retailers as of October 30, 2026, with prices from $4,109 to $9,583, a $5,474 spread on the same certified stone. NZ Jewellers lists it at $9,583. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1555675433
Dimensions7.11 × 7.65 × 4.81 mm
L/W Ratio1.08
Top View
7.11 mm7.65 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1555675433
Side View
Table 54.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.9%

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: $9,583 SGD|Low: $4,076 SGD|High: $9,949 SGD|Avg: $5,929 SGD|-3.7%
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 16$4,109 SGD
Retailer 5$4,696 SGD
Retailer 9$4,839 SGD
Retailer 6$4,922 SGD
Retailer 10$5,077 SGD
Retailer 2$5,146 SGD
Retailer 8$5,182 SGD
Retailer 4$5,218 SGD
Retailer 3$5,501 SGD
Retailer 17$5,501 SGD
Retailer 19$5,501 SGD
Retailer 13$5,627 SGD
Retailer 7$5,818 SGD
Retailer 11$6,091 SGD
Retailer 12$6,223 SGD
Retailer 18$6,347 SGD
Retailer 15$6,761 SGD
Retailer 14$8,761 SGD
NZ Jewellers$9,583 SGD

27 data points across 19 retailers

20 retailers$4,109 SGD to $9,583 SGD

A
Cheapest Retailer
-
$4,109 SGD
HK$25,100 HKD
A
Retailer 2
-
$4,696 SGD
$3,672 USD
View
A
Retailer 3
-
$4,839 SGD
$3,784 USD
View
A
Retailer 4
-
$4,922 SGD
$3,849 USD
View
A
Retailer 5
-
$5,077 SGD
$3,970 USD
View
Final sale: no returns
A
Retailer 6
-
$5,146 SGD
£3,168 GBP
View
Retailer 7
-
$5,182 SGD
View
Price last confirmed 7 days ago
A
Retailer 8
-
$5,218 SGD
$4,080 USD
View
A
Retailer 9
-
$5,501 SGD
$4,301 USD
View
A
Retailer 10
-
$5,501 SGD
$4,301 USD
View
A
Retailer 11
-
$5,501 SGD
$4,301 USD
View
Retailer 12
-
$5,501 SGD
$4,301 USD
View
Price last confirmed 17 days ago
A
Retailer 13
-
$5,627 SGD
£3,464 GBP
View
A
Retailer 14
-
$5,818 SGD
$4,549 USD
View
Retailer 15
-
$6,091 SGD
A$7,327 AUD
View
Price last confirmed 24 days ago
A
Retailer 16
-
$6,223 SGD
€4,634 EUR
View
A
Retailer 17
-
$6,347 SGD
$4,963 USD
View
B+
Retailer 18
-
$6,761 SGD
ZAR 85,406 ZAR
View
B+
Retailer 19
-
$8,761 SGD
£5,394 GBP
View
Most Expensive
B+
NZ Jewellers
75921cc3-57e0-4f48-9a25-f38bd2c9e6a6 · Oct 30
$9,583 SGD
$7,493 USD
View
19 more retailers have this diamond
Prices start from $4,109 SGDSave up to $5,474 SGD

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
$4,109 SGD