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Heart|Natural|GIA

1.50ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 5416959900

Certificate GIA 5416959900

Diamond specifications and retailer prices

From $7,875 AUD
₹526,865 INR
As of October 31, 2026
Save $10,903 AUD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,779 AUD at Adiamor · As of November 1, 2026
View at Adiamor

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded G 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 5416959900. Listed at 19 retailers as of October 31, 2026, with prices from $7,875 to $18,779, a $10,903 spread on the same certified stone. Adiamor lists it at $18,779. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5416959900
Dimensions7.33 × 7.77 × 4.12 mm
L/W Ratio1.06
Top View
7.33 mm7.77 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5416959900
Side View
Table 60.0%CrownGirdle: MED-XTKPavilionCulet: NoneDepth 53.1%

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: $11,845 AUD|Low: $7,855 AUD|High: $15,294 AUD|Avg: $10,751 AUD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$7,875 AUD
Retailer 7$7,890 AUD
Retailer 4$9,137 AUD
Retailer 9$10,009 AUD
Retailer 2$10,223 AUD
Retailer 8$10,454 AUD
Retailer 1$11,845 AUD
Retailer 5$13,323 AUD
Retailer 3$15,111 AUD

33 data points across 9 retailers

19 retailers$7,875 AUD to $18,779 AUD

A
Cheapest Retailer
-
$7,875 AUD
₹526,865 INR
B+
Retailer 2
-
$7,890 AUD
HK$43,300 HKD
View
Retailer 3
-
$9,004 AUD
SGD 8,547 SGD
View
Price last confirmed 18 days ago
B+
Retailer 4
-
$9,137 AUD
$6,418 USD
View
B+
Retailer 5
-
$9,175 AUD
$6,445 USD
View
B+
Retailer 6
-
$10,008 AUD
$7,030 USD
View
B+
Retailer 7
-
$10,009 AUD
$7,031 USD
View
B+
Retailer 8
-
$10,009 AUD
$7,031 USD
View
Final sale: no returns
B+
Retailer 9
-
$10,223 AUD
£5,655 GBP
View
Retailer 10
-
$10,454 AUD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$10,844 AUD
$7,617 USD
View
B
Retailer 12
-
$11,010 AUD
$7,734 USD
View
B
Retailer 13
-
$11,076 AUD
$7,780 USD
View
B
Retailer 14
-
$11,845 AUD
€7,924 EUR
View
B
Retailer 15
-
$12,512 AUD
$8,789 USD
View
B
Retailer 16
-
$13,323 AUD
ZAR 151,185 ZAR
View
B
Retailer 17
-
$15,111 AUD
£8,358 GBP
View
B
Retailer 18
-
$18,135 AUD
$12,739 USD
View
Most Expensive
B
Adiamor
D-64681696 · Nov 1
$18,779 AUD
$13,191 USD
View
18 more retailers have this diamond
Prices start from $7,875 AUDSave up to $10,903 AUD

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
$7,875 AUD