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Heart|Natural|GIA

1.50ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 5553306007

Certificate GIA 5553306007

Diamond specifications and retailer prices

From $5,035 SGD
As of November 6, 2026
Save $5,638 SGD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $11,605 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553306007. Listed at 22 retailers as of November 4, 2026, with a 112% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553306007
Dimensions7.41 × 8.05 × 4.41 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
7.41 mm8.05 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553306007
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 54.8%

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 6
Current: $11,605 SGD|Low: $5,019 SGD|High: $11,646 SGD|Avg: $7,193 SGD|+2.1%
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
November 6, 2026
Retailer 13$5,035 SGD
Retailer 2$5,339 SGD
Retailer 10$5,849 SGD
Retailer 9$6,003 SGD
Retailer 4$6,203 SGD
Retailer 5$6,446 SGD
Retailer 7$6,602 SGD
Retailer 12$6,754 SGD
Retailer 3$6,914 SGD
Retailer 6$7,560 SGD
Retailer 8$8,198 SGD
Retailer 11$10,673 SGD
Queensmith$11,605 SGD

28 data points across 13 retailers

22 retailers$5,035 SGD to $10,673 SGD

A
Cheapest Retailer
-
$5,035 SGD
A
Retailer 2
-
$5,339 SGD
View
B+
Retailer 3
-
$5,849 SGD
View
B+
Retailer 4
-
$6,003 SGD
View
B+
Retailer 5
-
$6,203 SGD
View
Final sale: no returns
B+
Retailer 6
-
$6,208 SGD
View
B+
Retailer 7
-
$6,209 SGD
View
Retailer 8
-
$6,446 SGD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
$6,528 SGD
View
B+
Retailer 10
-
$6,602 SGD
View
B+
Retailer 11
-
$6,754 SGD
View
Retailer 12
-
$6,763 SGD
View
Price last confirmed 21 days ago
Retailer 13
-
$6,763 SGD
View
Price last confirmed 19 days ago
Retailer 14
-
$6,763 SGD
View
Price last confirmed 21 days ago
Retailer 15
-
$6,863 SGD
View
Price last confirmed 28 days ago
B+
Retailer 16
-
$6,914 SGD
View
B+
Retailer 17
-
$7,560 SGD
View
Retailer 18
-
$7,804 SGD
View
Price last confirmed 18 days ago
B+
Retailer 19
-
$8,198 SGD
View
B
Retailer 20
-
$10,673 SGD
View
Retailer 21
-
$11,311 SGD
View
Price last confirmed 19 days ago
Most Expensive
Queensmith
5553306007 · Oct 28
$11,605 SGD
£7,130 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $5,035 SGDSave up to $5,638 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
$5,035 SGD