Heart|Natural|GIA

1.50ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6455572879

Certificate GIA 6455572879

Diamond specifications and retailer prices

From $5,258 SGD
$4,113 USD
As of October 31, 2026
Save $5,738 SGD (52%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,531 SGD at NZ Jewellers · As of October 24, 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 D 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 6455572879. Listed at 13 retailers as of October 26, 2026, with a 109% 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

1.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6455572879
Dimensions6.52 × 7.89 × 4.84 mm
L/W Ratio1.21
Top View
6.52 mm7.89 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6455572879
Side View
Table 55.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.4%

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 31
Current: $11,531 SGD|Low: $4,806 SGD|High: $11,531 SGD|Avg: $7,285 SGD
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
October 27, 2026
Retailer 15$5,258 SGD
Retailer 18$5,286 SGD
Retailer 3$5,440 SGD
Retailer 16$5,766 SGD
Retailer 4$6,246 SGD
Retailer 12$6,246 SGD
Retailer 13$6,246 SGD
Retailer 11$6,534 SGD
Retailer 17$6,639 SGD
Retailer 6$7,070 SGD
Retailer 7$7,070 SGD
Retailer 2$7,277 SGD
Retailer 5$7,300 SGD
Retailer 9$7,828 SGD
Retailer 8$8,504 SGD
Retailer 10$9,678 SGD
Retailer 14$10,996 SGD
NZ Jewellers$11,531 SGD

39 data points across 18 retailers

13 retailers$5,258 SGD to $10,996 SGD

A
Cheapest Retailer
-
$5,258 SGD
$4,113 USD
A
Retailer 2
-
$5,286 SGD
$4,135 USD
View
A
Retailer 3
-
$5,440 SGD
$4,255 USD
View
A
Retailer 4
-
$6,246 SGD
$4,886 USD
View
A
Retailer 5
-
$6,246 SGD
$4,886 USD
View
A
Retailer 6
-
$6,534 SGD
£4,024 GBP
View
A
Retailer 7
-
$6,639 SGD
$5,193 USD
View
A
Retailer 8
-
$7,070 SGD
$5,530 USD
View
A
Retailer 9
-
$7,070 SGD
$5,530 USD
View
B+
Retailer 10
-
$7,277 SGD
$5,692 USD
View
B+
Retailer 11
-
$7,300 SGD
$5,710 USD
View
B+
Retailer 12
-
$10,996 SGD
£6,773 GBP
View
Most Expensive
NZ Jewellers
f8a64e5f-cbaf-4ca0-8099-571045c50564 · Oct 24
$11,531 SGD
$9,020 USD
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from $5,258 SGDSave up to $5,738 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
$5,258 SGD