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Heart|Natural|GIA

0.75ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 6561260317

Certificate GIA 6561260317

Diamond specifications and retailer prices

From £498 GBP
SGD 903 SGD
As of November 2, 2026
Save £69 GBP (12%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £567 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6561260317. Listed at 3 retailers as of October 31, 2026, with a relatively tight 14% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.75
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561260317
Dimensions5.86 × 6.11 × 3.56 mm
L/W Ratio1.04
Culet sizeNone
Key to symbols
Crystal, Cloud, Twinning Wisp, Feather
Top View
5.86 mm6.11 mm0.75 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 6561260317
Side View
Table 51.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.3%

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: Nov 2
Current: £567 GBP|Low: £498 GBP|High: £613 GBP|Avg: £543 GBP|-7.4%
Blue Nile
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£498 GBP
Retailer 2£553 GBP
Blue Nile£567 GBP

40 data points across 3 retailers

3 retailers£498 GBP to £567 GBP

A
Cheapest Retailer
-
£498 GBP
SGD 903 SGD
B+
Retailer 2
-
£553 GBP
View
Most Expensive
B+
Blue Nile
30152807 · Oct 31
£567 GBP
$761 USD
View
2 more retailers have this diamond
Prices start from £498 GBPSave up to £69 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
0.75ct Heart
£498 GBP