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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 £4,122 GBP
₹526,865 INR
As of October 31, 2026
Save £5,707 GBP (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £9,830 GBP 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 £4,122 to £9,830, a £5,707 spread on the same certified stone. Adiamor lists it at £9,830. 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: £5,352 GBP|Low: £4,112 GBP|High: £8,006 GBP|Avg: £5,626 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 6£4,122 GBP
Retailer 7£4,130 GBP
Retailer 4£4,783 GBP
Retailer 9£5,239 GBP
Retailer 1£5,352 GBP
Retailer 8£5,472 GBP
Retailer 2£6,200 GBP
Retailer 5£6,974 GBP
Retailer 3£7,910 GBP

34 data points across 9 retailers

19 retailers£4,122 GBP to £9,830 GBP

A
Cheapest Retailer
-
£4,122 GBP
₹526,865 INR
B+
Retailer 2
-
£4,130 GBP
HK$43,300 HKD
View
Retailer 3
-
£4,713 GBP
SGD 8,547 SGD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
£4,783 GBP
$6,418 USD
View
B+
Retailer 5
-
£4,803 GBP
$6,445 USD
View
B+
Retailer 6
-
£5,239 GBP
$7,030 USD
View
B+
Retailer 7
-
£5,239 GBP
$7,031 USD
View
B+
Retailer 8
-
£5,239 GBP
$7,031 USD
View
Final sale: no returns
B+
Retailer 9
-
£5,352 GBP
View
Retailer 10
-
£5,472 GBP
A$11,298 AUD
View
Price last confirmed 12 days ago
B
Retailer 11
-
£5,676 GBP
$7,617 USD
View
B
Retailer 12
-
£5,763 GBP
$7,734 USD
View
B
Retailer 13
-
£5,798 GBP
$7,780 USD
View
B
Retailer 14
-
£6,200 GBP
€7,924 EUR
View
B
Retailer 15
-
£6,549 GBP
$8,789 USD
View
B
Retailer 16
-
£6,974 GBP
ZAR 151,185 ZAR
View
B
Retailer 17
-
£7,910 GBP
View
B
Retailer 18
-
£9,493 GBP
$12,739 USD
View
Most Expensive
B
Adiamor
D-64681696 · Nov 1
£9,830 GBP
$13,191 USD
View
18 more retailers have this diamond
Prices start from £4,122 GBPSave up to £5,707 GBP

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
£4,122 GBP