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Heart|Natural|GIA

1.50ct K SI1 Heart Natural Diamond

VG • K/SI1 • GIA 6481380983

Certificate GIA 6481380983

Diamond specifications and retailer prices

From $3,149 SGD
As of November 6, 2026
Save $3,927 SGD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,991 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6481380983. Listed at 15 retailers as of November 4, 2026, with a 125% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.3°
OriginNatural
Grading LabGIA
CertificateGIA 6481380983
Dimensions7.90 × 7.15 × 4.04 mm
L/W Ratio1.10
Top View
7.90 mm7.15 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6481380983
Side View
Table 59.0%CrownGirdle: THN-THKPavilion 37.3°Culet: NoneDepth 56.5%

Caratlytics Score

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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: Nov 6
Current: $6,473 SGD|Low: $3,149 SGD|High: $7,374 SGD|Avg: $4,445 SGD|-6.0%
Retailer 1
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 6, 2026
Retailer 8$3,149 SGD
Retailer 3$3,308 SGD
Retailer 4$3,486 SGD
Retailer 2$3,547 SGD
Retailer 14$3,549 SGD
Retailer 5$3,745 SGD
Retailer 6$3,749 SGD
Retailer 12$4,165 SGD
Retailer 7$4,183 SGD
Retailer 10$4,213 SGD
Retailer 9$4,739 SGD
Retailer 11$5,179 SGD
Retailer 1$6,473 SGD
Retailer 13$7,076 SGD

35 data points across 14 retailers

15 retailers$3,149 SGD to $7,076 SGD

A
Cheapest Retailer
-
$3,149 SGD
A
Retailer 2
-
$3,308 SGD
View
A
Retailer 3
-
$3,486 SGD
View
A
Retailer 4
-
$3,547 SGD
View
A
Retailer 5
-
$3,549 SGD
View
Final sale: no returns
A
Retailer 6
-
$3,745 SGD
View
A
Retailer 7
-
$3,749 SGD
View
B+
Retailer 8
-
$4,165 SGD
View
A
Retailer 9
-
$4,183 SGD
View
A
Retailer 10
-
$4,213 SGD
View
B+
Retailer 11
-
$4,739 SGD
View
B+
Retailer 12
-
$5,179 SGD
View
B
Retailer 13
-
$6,473 SGD
View
B
Retailer 14
-
$7,076 SGD
View
Most Expensive
NZ Jewellers
3ac3cce9-6fdf-4e9f-9ae1-719d6f6c23ef · Sep 25
$7,991 SGD
$6,235 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from $3,149 SGDSave up to $3,927 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
1.50ct Heart
$3,149 SGD