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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 $7,088 NZD
As of November 6, 2026
Save $7,935 NZD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $16,334 NZD 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: $16,334 NZD|Low: $7,064 NZD|High: $16,392 NZD|Avg: $10,124 NZD|+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$7,088 NZD
Retailer 2$7,515 NZD
Retailer 10$8,233 NZD
Retailer 9$8,449 NZD
Retailer 4$8,731 NZD
Retailer 5$9,074 NZD
Retailer 7$9,292 NZD
Retailer 12$9,507 NZD
Retailer 3$9,732 NZD
Retailer 6$10,641 NZD
Retailer 8$11,540 NZD
Retailer 11$15,023 NZD
Queensmith$16,334 NZD

28 data points across 13 retailers

22 retailers$7,088 NZD to $15,023 NZD

A
Cheapest Retailer
-
$7,088 NZD
A
Retailer 2
-
$7,515 NZD
View
B+
Retailer 3
-
$8,233 NZD
View
B+
Retailer 4
-
$8,449 NZD
View
B+
Retailer 5
-
$8,731 NZD
View
Final sale: no returns
B+
Retailer 6
-
$8,738 NZD
View
B+
Retailer 7
-
$8,740 NZD
View
Retailer 8
-
$9,074 NZD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$9,189 NZD
View
B+
Retailer 10
-
$9,292 NZD
View
B+
Retailer 11
-
$9,507 NZD
View
Retailer 12
-
$9,519 NZD
View
Price last confirmed 22 days ago
Retailer 13
-
$9,519 NZD
View
Price last confirmed 20 days ago
Retailer 14
-
$9,519 NZD
View
Price last confirmed 22 days ago
Retailer 15
-
$9,660 NZD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$9,732 NZD
View
B+
Retailer 17
-
$10,641 NZD
View
Retailer 18
-
$10,984 NZD
View
Price last confirmed 19 days ago
B+
Retailer 19
-
$11,540 NZD
View
B
Retailer 20
-
$15,023 NZD
View
Retailer 21
-
$15,921 NZD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
5553306007 · Oct 28
$16,334 NZD
£7,130 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $7,088 NZDSave up to $7,935 NZD

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
$7,088 NZD