CaratHunter
Plans
Heart|Natural|GIA

0.75ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6535971428

Certificate GIA 6535971428

Diamond specifications and retailer prices

From £614 GBP
$824 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £614 GBP at The Diamond Guys
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at The Diamond Guys

About this 0.75ct natural heart diamond

This 0.75ct natural heart sits in the just-under-one-carat band, graded I 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 6535971428. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.75
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle42.38°
Pavilion angle41.36°
OriginNatural
Grading LabGIA
CertificateGIA 6535971428
Dimensions6.24 × 5.50 × 3.26 mm
L/W Ratio1.13
Top View
6.24 mm5.50 mm0.75 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535971428
Side View
Table 58.0%Crown 42.38°Girdle: MED-VTKPavilion 41.36°Culet: NoneDepth 59.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £519 GBP|Low: £322 GBP|High: £913 GBP|Avg: £623 GBP|-9.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
The Diamond Guys
August 16, 2026
Retailer 6£322 GBP
Retailer 1£519 GBP
Retailer 5£526 GBP
Retailer 3£555 GBP
Retailer 9£561 GBP
The Diamond Guys£614 GBP
Retailer 2£614 GBP
Retailer 4£684 GBP
Retailer 10£736 GBP
Retailer 8£813 GBP
Retailer 7£816 GBP

63 data points across 11 retailers

1 retailer

B+
The Diamond Guys
1918497505 · Nov 2
£614 GBP
$824 USD
View

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.

B+
0.75ct Heart
£614 GBP