Heart|Natural|GIA

1.50ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6435991168

Certificate GIA 6435991168

Diamond specifications and retailer prices

From $8,605 NZD
$4,850 USD
As of November 1, 2026
Save $10,334 NZD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $18,939 NZD at NZ Jewellers · As of October 30, 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 6435991168. Listed at 12 retailers as of October 30, 2026, with prices from $8,605 to $18,939, a $10,334 spread on the same certified stone. NZ Jewellers lists it at $18,939. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6435991168
Dimensions7.82 × 6.60 × 4.72 mm
L/W Ratio1.18
Top View
7.82 mm6.60 mm1.50 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6435991168
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.3%

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 1
Current: $18,939 NZD|Low: $7,816 NZD|High: $18,939 NZD|Avg: $11,271 NZD|+1.0%
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
November 1, 2026
Retailer 7$8,117 NZD
Retailer 15$8,605 NZD
Retailer 3$8,847 NZD
Retailer 14$9,379 NZD
Retailer 5$10,114 NZD
Retailer 10$10,259 NZD
Retailer 11$10,259 NZD
Retailer 12$10,259 NZD
Retailer 2$10,595 NZD
Retailer 4$10,717 NZD
Retailer 13$11,836 NZD
Retailer 6$11,882 NZD
Retailer 9$13,913 NZD
Retailer 8$16,684 NZD
NZ Jewellers$18,939 NZD

44 data points across 15 retailers

12 retailers$8,605 NZD to $18,939 NZD

A
Cheapest Retailer
-
$8,605 NZD
$4,850 USD
A
Retailer 2
-
$8,847 NZD
$4,986 USD
View
A
Retailer 3
-
$9,379 NZD
$5,286 USD
View
Final sale: no returns
A
Retailer 4
-
$10,114 NZD
$5,700 USD
View
A
Retailer 5
-
$10,259 NZD
$5,782 USD
View
A
Retailer 6
-
$10,259 NZD
$5,782 USD
View
A
Retailer 7
-
$10,595 NZD
£4,702 GBP
View
B+
Retailer 8
-
$10,717 NZD
$6,040 USD
View
B+
Retailer 9
-
$11,836 NZD
$6,671 USD
View
B+
Retailer 10
-
$13,913 NZD
ZAR 126,676 ZAR
View
B
Retailer 11
-
$16,684 NZD
£7,404 GBP
View
Most Expensive
B
NZ Jewellers
af9601fe-5ca9-4705-a211-6f3a86158ee6 · Oct 30
$18,939 NZD
$10,674 USD
View
11 more retailers have this diamond
Prices start from $8,605 NZDSave up to $10,334 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
$8,605 NZD