Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 5241019812

Certificate GIA 5241019812

Diamond specifications and retailer prices

From $2,918 USD
HK$22,800 HKD
As of November 1, 2026
Save $3,885 USD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,981 USD at NZ Jewellers · As of September 25, 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 I 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 5241019812. Listed at 14 retailers as of November 1, 2026, with a 133% 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
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241019812
Dimensions6.52 × 7.77 × 4.94 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
6.52 mm7.77 mm1.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241019812
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.5%

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: $2,918 USD|Low: $2,918 USD|High: $7,159 USD|Avg: $4,452 USD|-8.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 1$2,918 USD
Retailer 6$3,409 USD
Retailer 2$3,628 USD
Retailer 3$3,741 USD
Retailer 9$3,755 USD
Retailer 7$3,760 USD
Retailer 11$3,930 USD
Retailer 8$4,370 USD
Retailer 4$4,750 USD
Retailer 10$5,079 USD
Retailer 12$6,283 USD
Retailer 5$6,803 USD

29 data points across 12 retailers

14 retailers$2,918 USD to $6,803 USD

A
Cheapest Retailer
-
$2,918 USD
HK$22,800 HKD
A
Retailer 2
-
$3,409 USD
€3,246 EUR
View
A
Retailer 3
-
$3,628 USD
View
A
Retailer 4
-
$3,741 USD
SGD 5,056 SGD
View
A
Retailer 5
-
$3,755 USD
View
Final sale: no returns
A
Retailer 6
-
$3,760 USD
£2,961 GBP
View
A
Retailer 7
-
$3,930 USD
View
A
Retailer 8
-
$4,370 USD
View
B+
Retailer 9
-
$4,594 USD
A$7,068 AUD
View
Retailer 10
-
$4,750 USD
A$7,307 AUD
View
Price last confirmed 23 days ago
B+
Retailer 11
-
$5,079 USD
ZAR 82,049 ZAR
View
B+
Retailer 12
-
$6,283 USD
View
B
Retailer 13
-
$6,803 USD
£5,357 GBP
View
Most Expensive
NZ Jewellers
866873ad-59aa-4b49-ba40-dce63a4157de · Sep 25
$7,981 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $2,918 USDSave up to $3,885 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
$2,918 USD