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Heart|Natural|GIA

1.50ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 1559797631

Certificate GIA 1559797631

Diamond specifications and retailer prices

From $10,868 NZD
SGD 8,277 SGD
As of October 31, 2026
Save $431 NZD (4%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $20,568 NZD at NZ Jewellers · As of October 21, 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 1559797631. Listed at 19 retailers as of October 31, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1559797631
Dimensions7.22 × 7.95 × 4.65 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.22 mm7.95 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559797631
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 58.6%

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: Oct 31
Current: $20,568 NZD|Low: $9,153 NZD|High: $20,568 NZD|Avg: $12,959 NZD
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
Retailer 19
Retailer 20
October 22, 2026
Retailer 8$9,153 NZD
Retailer 17$9,836 NZD
Retailer 4$10,284 NZD
Retailer 10$10,522 NZD
Retailer 5$10,868 NZD
Retailer 7$11,350 NZD
Retailer 6$11,352 NZD
Retailer 14$11,528 NZD
Retailer 15$11,852 NZD
Retailer 11$12,047 NZD
Retailer 12$12,137 NZD
Retailer 16$12,298 NZD
Retailer 3$12,488 NZD
Retailer 9$12,582 NZD
Retailer 18$13,337 NZD
Retailer 13$14,189 NZD
Retailer 20$14,928 NZD
Retailer 19$18,214 NZD
Retailer 2$18,387 NZD
NZ Jewellers$20,568 NZD

22 data points across 20 retailers

19 retailers$10,868 NZD to $11,299 NZD

Retailer 1
-
$9,153 NZD
HK$40,300 HKD
Price last confirmed 12 days ago
Retailer 2
-
$9,836 NZD
₹527,957 INR
View
Price last confirmed 14 days ago
Retailer 3
-
$10,284 NZD
$5,796 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$10,522 NZD
SGD 8,014 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$10,868 NZD
SGD 8,277 SGD
View
B+
Retailer 6
-
$11,299 NZD
$6,368 USD
View
Retailer 7
-
$11,302 NZD
$6,370 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$11,352 NZD
$6,398 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$11,852 NZD
£5,260 GBP
View
Price last confirmed 12 days ago
Retailer 10
-
$12,047 NZD
$6,790 USD
View
Price last confirmed 11 days ago
Retailer 11
-
$12,137 NZD
A$10,524 AUD
View
Price last confirmed 29 days ago
Retailer 12
-
$12,298 NZD
$6,931 USD
View
Price last confirmed 12 days ago
Retailer 13
-
$12,488 NZD
$7,038 USD
View
Price last confirmed 16 days ago
Retailer 14
-
$12,582 NZD
$7,091 USD
View
Price last confirmed 15 days ago
Retailer 15
-
$14,189 NZD
$7,997 USD
View
Price last confirmed 12 days ago
Retailer 16
-
$14,928 NZD
ZAR 135,924 ZAR
View
Price last confirmed 15 days ago
Retailer 17
-
$18,214 NZD
£8,083 GBP
View
Price last confirmed 12 days ago
Retailer 18
-
$18,387 NZD
£8,160 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
8d6608aa-ee51-4159-9e31-7cfd63a51cb0 · Oct 21
$20,568 NZD
$11,592 USD
View
Price last confirmed 12 days ago
18 more retailers have this diamond
Prices start from $10,868 NZDSave up to $431 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
$10,868 NZD