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Heart|Natural|GIA

1.53ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 6542893943

Certificate GIA 6542893943

Diamond specifications and retailer prices

From £3,170 GBP
$4,254 USD
As of November 1, 2026
Save £3,458 GBP (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £7,545 GBP at NZ Jewellers · As of September 25, 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 6542893943. Listed at 16 retailers as of November 1, 2026, with a 109% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle38.1°
OriginNatural
Grading LabGIA
CertificateGIA 6542893943
Dimensions7.08 × 7.98 × 4.61 mm
L/W Ratio1.13
Top View
7.08 mm7.98 mm1.53 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542893943
Side View
Table 57.0%CrownGirdle: THN-VTKPavilion 38.1°Culet: NoneDepth 57.8%

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: £3,607 GBP|Low: £3,138 GBP|High: £6,974 GBP|Avg: £4,162 GBP|-4.3%
Retailer 1
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 15£3,170 GBP
Retailer 11£3,176 GBP
Retailer 14£3,354 GBP
Retailer 12£3,479 GBP
Retailer 6£3,569 GBP
Retailer 4£3,597 GBP
Retailer 1£3,607 GBP
Retailer 3£3,644 GBP
Retailer 9£3,778 GBP
Retailer 10£3,990 GBP
Retailer 13£4,060 GBP
Retailer 7£4,301 GBP
Retailer 2£5,151 GBP
Retailer 8£6,628 GBP
Retailer 5£6,680 GBP

26 data points across 15 retailers

16 retailers£3,170 GBP to £6,628 GBP

A
Cheapest Retailer
-
£3,170 GBP
$4,254 USD
A
Retailer 2
-
£3,176 GBP
HK$33,300 HKD
View
A
Retailer 3
-
£3,354 GBP
$4,501 USD
View
A
Retailer 4
-
£3,479 GBP
$4,669 USD
View
Final sale: no returns
A
Retailer 5
-
£3,569 GBP
$4,790 USD
View
A
Retailer 6
-
£3,597 GBP
$4,826 USD
View
A
Retailer 7
-
£3,607 GBP
€4,610 EUR
View
A
Retailer 8
-
£3,644 GBP
$4,890 USD
View
A
Retailer 9
-
£3,778 GBP
$5,070 USD
View
A
Retailer 10
-
£3,990 GBP
$5,355 USD
View
B+
Retailer 11
-
£4,060 GBP
View
Retailer 12
-
£4,301 GBP
A$8,880 AUD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
£5,151 GBP
ZAR 111,662 ZAR
View
B
Retailer 14
-
£6,628 GBP
View
Retailer 15
-
£6,680 GBP
$8,964 USD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
1493fa58-af9a-4fab-bfef-840e4e9ae299 · Sep 25
£7,545 GBP
$10,125 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from £3,170 GBPSave up to £3,458 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
£3,170 GBP