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Heart|Natural|GIA

1.53ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 5546018862

Certificate GIA 5546018862

Diamond specifications and retailer prices

From £3,828 GBP
$5,137 USD
As of October 30, 2026
Save £3,738 GBP (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,566 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.53ct natural heart diamond

This 1.53ct 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 5546018862. Listed at 15 retailers as of October 30, 2026, with prices from £3,828 to £7,566, a £3,738 spread on the same certified stone. NZ Jewellers lists it at £7,566. 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

1.53
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.31°
Pavilion angle41.53°
OriginNatural
Grading LabGIA
CertificateGIA 5546018862
Dimensions6.71 × 7.89 × 4.72 mm
L/W Ratio1.18
Top View
6.71 mm7.89 mm1.53 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546018862
Side View
Table 61.0%Crown 38.31°Girdle: STK-THKPavilion 41.53°Culet: NoneDepth 59.8%

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 30
Current: £7,566 GBP|Low: £3,827 GBP|High: £7,566 GBP|Avg: £4,821 GBP
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
November 2, 2026
Retailer 7£3,828 GBP
Retailer 6£3,945 GBP
Retailer 12£4,175 GBP
Retailer 15£4,214 GBP
Retailer 2£4,262 GBP
Retailer 8£4,412 GBP
Retailer 13£4,472 GBP
Retailer 3£4,524 GBP
Retailer 4£4,524 GBP
Retailer 11£4,524 GBP
Retailer 14£4,637 GBP
Retailer 5£5,220 GBP
Retailer 10£5,558 GBP
Retailer 9£6,664 GBP
NZ Jewellers£7,566 GBP

36 data points across 15 retailers

15 retailers£3,828 GBP to £7,566 GBP

A
Cheapest Retailer
-
£3,828 GBP
$5,137 USD
A
Retailer 2
-
£3,945 GBP
$5,294 USD
View
B+
Retailer 3
-
£4,175 GBP
$5,603 USD
View
Final sale: no returns
B+
Retailer 4
-
£4,214 GBP
$5,655 USD
View
B+
Retailer 5
-
£4,262 GBP
View
B+
Retailer 6
-
£4,412 GBP
View
Retailer 7
-
£4,472 GBP
A$9,233 AUD
View
Price last confirmed 24 days ago
B+
Retailer 8
-
£4,524 GBP
$6,071 USD
View
B+
Retailer 9
-
£4,524 GBP
$6,071 USD
View
B+
Retailer 10
-
£4,524 GBP
$6,071 USD
View
B+
Retailer 11
-
£4,637 GBP
$6,223 USD
View
B
Retailer 12
-
£5,220 GBP
$7,005 USD
View
B+
Retailer 13
-
£5,558 GBP
ZAR 120,497 ZAR
View
B
Retailer 14
-
£6,664 GBP
View
Most Expensive
B
NZ Jewellers
d014b7a4-0330-4af6-b1a2-45134150dba9 · Oct 30
£7,566 GBP
$10,153 USD
View
14 more retailers have this diamond
Prices start from £3,828 GBPSave up to £3,738 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
1.53ct Heart
£3,828 GBP