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Heart|Natural|GIA

0.80ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 6455676532

Certificate GIA 6455676532

Diamond specifications and retailer prices

From £545 GBP
As of November 6, 2026
Save £537 GBP (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,853 GBP at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 0.8ct natural heart diamond

This 0.8ct natural heart sits in the just-under-one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6455676532. Listed at 9 retailers as of November 2, 2026, with a 98% 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

0.80
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6455676532
Dimensions5.68 × 6.82 × 3.69 mm
L/W Ratio1.20
Top View
5.68 mm6.82 mm0.80 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6455676532
Side View
Table 59.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 54.1%

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 6
Current: £779 GBP|Low: £545 GBP|High: £1,088 GBP|Avg: £772 GBP|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7£545 GBP
Retailer 6£591 GBP
Retailer 4£613 GBP
Retailer 3£703 GBP
Retailer 10£720 GBP
Retailer 1£779 GBP
Retailer 9£817 GBP
Retailer 8£852 GBP
Retailer 2£861 GBP
Retailer 5£1,083 GBP

17 data points across 10 retailers

9 retailers£545 GBP to £1,083 GBP

A
Cheapest Retailer
-
£545 GBP
Final sale: no returns
Retailer 2
-
£591 GBP
View
Price last confirmed 12 days ago
Retailer 3
-
£591 GBP
View
Price last confirmed 47 days ago
A
Retailer 4
-
£613 GBP
View
Retailer 5
-
£681 GBP
View
Price last confirmed 48 days ago
A
Retailer 6
-
£703 GBP
View
A
Retailer 7
-
£779 GBP
View
B+
Retailer 8
-
£1,083 GBP
View
Most Expensive
NZ Jewellers
4318e165-954f-44b0-8814-4eddb61d7db5 · Sep 20
£1,853 GBP
$2,480 USD
View
Price last confirmed 46 days ago
8 more retailers have this diamond
Prices start from £545 GBPSave up to £537 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
0.80ct Heart
£545 GBP