Heart|Natural|GIA

1.53ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 7512805115

Certificate GIA 7512805115

Diamond specifications and retailer prices

From £2,966 GBP
As of November 2, 2026
Save £2,161 GBP (42%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £5,687 GBP at NZ Jewellers · As of September 20, 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 7512805115. Listed at 10 retailers as of November 2, 2026, with a 73% 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
Crown angle36.62°
Pavilion angle41.66°
OriginNatural
Grading LabGIA
CertificateGIA 7512805115
Dimensions7.30 × 8.04 × 4.73 mm
L/W Ratio1.10
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Crystal, Feather, Cloud, Needle
Top View
7.30 mm8.04 mm1.53 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7512805115
Side View
Table 61.0%Crown 36.62°GirdlePavilion 41.66°CuletDepth 58.9%

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 2
Current: £5,127 GBP|Low: £2,911 GBP|High: £5,262 GBP|Avg: £3,519 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6£2,947 GBP
Retailer 3£2,966 GBP
Retailer 2£3,033 GBP
Retailer 4£3,119 GBP
Retailer 5£3,482 GBP
Retailer 1£5,127 GBP

42 data points across 6 retailers

10 retailers£2,966 GBP to £5,127 GBP

A
Cheapest Retailer
-
£2,966 GBP
A
Retailer 2
-
£3,033 GBP
View
A
Retailer 3
-
£3,119 GBP
$4,185 USD
View
Retailer 4
-
£3,265 GBP
$4,381 USD
View
Price last confirmed 32 days ago
Retailer 5
-
£3,265 GBP
$4,381 USD
View
Price last confirmed 40 days ago
Retailer 6
-
£3,265 GBP
$4,381 USD
View
Price last confirmed 26 days ago
Retailer 7
-
£3,482 GBP
A$7,189 AUD
View
Price last confirmed 24 days ago
B
Retailer 8
-
£5,127 GBP
View
Retailer 9
-
£5,687 GBP
$7,632 USD
View
Price last confirmed 27 days ago
Most Expensive
NZ Jewellers
6bacbd7f-5f23-4a2f-aee8-8f46be2902d1 · Sep 20
£5,687 GBP
$7,632 USD
View
Price last confirmed 42 days ago
9 more retailers have this diamond
Prices start from £2,966 GBPSave up to £2,161 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
£2,966 GBP