Heart|Natural|GIA

1.50ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 1559797631

Certificate GIA 1559797631

Diamond specifications and retailer prices

From $6,125 USD
SGD 8,277 SGD
As of October 31, 2026
Save $243 USD (4%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,592 USD 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 20 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $11,592 USD|Low: $5,158 USD|High: $11,592 USD|Avg: $7,304 USD
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$5,158 USD
Retailer 17$5,544 USD
Retailer 4$5,796 USD
Retailer 10$5,930 USD
Retailer 5$6,125 USD
Retailer 7$6,397 USD
Retailer 6$6,398 USD
Retailer 14$6,497 USD
Retailer 15$6,680 USD
Retailer 11$6,790 USD
Retailer 12$6,840 USD
Retailer 16$6,931 USD
Retailer 3$7,038 USD
Retailer 9$7,091 USD
Retailer 18$7,517 USD
Retailer 13$7,997 USD
Retailer 20$8,414 USD
Retailer 19$10,265 USD
Retailer 2$10,363 USD
NZ Jewellers$11,592 USD

22 data points across 20 retailers

20 retailers$6,125 USD to $6,368 USD

Retailer 1
-
$5,158 USD
HK$40,300 HKD
Price last confirmed 12 days ago
Retailer 2
-
$5,544 USD
₹527,957 INR
View
Price last confirmed 14 days ago
Retailer 3
-
$5,796 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$5,930 USD
SGD 8,014 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$6,125 USD
SGD 8,277 SGD
View
B+
Retailer 6
-
$6,368 USD
View
Retailer 7
-
$6,370 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$6,398 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$6,497 USD
£5,116 GBP
View
Price last confirmed 12 days ago
Retailer 10
-
$6,680 USD
£5,260 GBP
View
Price last confirmed 12 days ago
Retailer 11
-
$6,790 USD
View
Price last confirmed 11 days ago
Retailer 12
-
$6,840 USD
A$10,524 AUD
View
Price last confirmed 29 days ago
Retailer 13
-
$6,931 USD
View
Price last confirmed 12 days ago
Retailer 14
-
$7,038 USD
View
Price last confirmed 16 days ago
Retailer 15
-
$7,091 USD
View
Price last confirmed 14 days ago
Retailer 16
-
$7,997 USD
View
Price last confirmed 11 days ago
Retailer 17
-
$8,414 USD
ZAR 135,924 ZAR
View
Price last confirmed 15 days ago
Retailer 18
-
$10,265 USD
£8,083 GBP
View
Price last confirmed 12 days ago
Retailer 19
-
$10,363 USD
£8,160 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
8d6608aa-ee51-4159-9e31-7cfd63a51cb0 · Oct 21
$11,592 USD
View
Price last confirmed 12 days ago
19 more retailers have this diamond
Prices start from $6,125 USDSave up to $243 USD

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
$6,125 USD