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Heart|Natural|GIA

1.51ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 5546654705

Certificate GIA 5546654705

Diamond specifications and retailer prices

From $6,586 SGD
$5,152 USD
As of October 29, 2026
Save $5,723 SGD (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $12,310 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 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 5546654705. Listed at 9 retailers as of October 29, 2026, with prices from $6,586 to $12,310, a $5,723 spread on the same certified stone. NZ Jewellers lists it at $12,310. 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 angle38.76°
Pavilion angle43.09°
OriginNatural
Grading LabGIA
CertificateGIA 5546654705
Dimensions6.57 × 7.83 × 4.99 mm
L/W Ratio1.19
Top View
6.57 mm7.83 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546654705
Side View
Table 63.0%Crown 38.76°Girdle: THK-VTKPavilion 43.09°Culet: NoneDepth 63.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $12,310 SGD|Low: $6,586 SGD|High: $12,597 SGD|Avg: $8,425 SGD|-2.3%
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
October 30, 2026
Retailer 11$6,586 SGD
Retailer 2$6,907 SGD
Retailer 7$7,082 SGD
Retailer 9$7,360 SGD
Retailer 10$7,360 SGD
Retailer 8$7,400 SGD
Retailer 12$7,500 SGD
Retailer 13$7,760 SGD
Retailer 3$8,101 SGD
Retailer 5$8,845 SGD
Retailer 4$9,576 SGD
Retailer 6$10,902 SGD
NZ Jewellers$12,310 SGD

35 data points across 13 retailers

9 retailers$6,586 SGD to $12,310 SGD

A
Cheapest Retailer
-
$6,586 SGD
$5,152 USD
A
Retailer 2
-
$6,907 SGD
£4,254 GBP
View
A
Retailer 3
-
$7,082 SGD
$5,540 USD
View
A
Retailer 4
-
$7,360 SGD
$5,757 USD
View
A
Retailer 5
-
$7,360 SGD
$5,757 USD
View
Retailer 6
-
$7,400 SGD
A$8,905 AUD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$7,500 SGD
$5,867 USD
View
B+
Retailer 8
-
$10,902 SGD
£6,715 GBP
View
Most Expensive
B
NZ Jewellers
2000c503-6131-405e-84a0-61da46a0ca3b · Oct 30
$12,310 SGD
$9,629 USD
View
8 more retailers have this diamond
Prices start from $6,586 SGDSave up to $5,723 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
$6,586 SGD