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Heart|Natural|GIA

0.75ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6555611837

Certificate GIA 6555611837

Diamond specifications and retailer prices

From £770 GBP
$1,033 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £770 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 H 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 6555611837. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle42.37°
Pavilion angle39.16°
OriginNatural
Grading LabGIA
CertificateGIA 6555611837
Dimensions5.49 × 6.37 × 3.74 mm
L/W Ratio1.16
Culet sizeNone
Top View
5.49 mm6.37 mm0.75 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555611837
Side View
Table 60.0%Crown 42.37°Girdle: THN-VTKPavilion 39.16°Culet: NoneDepth 58.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: £617 GBP|Low: £387 GBP|High: £1,075 GBP|Avg: £749 GBP|-14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
The Diamond Guys
September 7, 2026
Retailer 10£387 GBP
Retailer 8£547 GBP
Retailer 9£595 GBP
Retailer 6£608 GBP
Retailer 1£617 GBP
Retailer 4£623 GBP
Retailer 5£687 GBP
Retailer 7£704 GBP
The Diamond Guys£770 GBP
Retailer 3£933 GBP
Retailer 11£1,015 GBP
Retailer 2£1,068 GBP

46 data points across 12 retailers

1 retailer

B+
The Diamond Guys
1963803031 · Nov 2
£770 GBP
$1,033 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
£770 GBP