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Heart|Natural|GIA

0.80ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1548272242

Certificate GIA 1548272242

Diamond specifications and retailer prices

From £458 GBP
HK$4,800 HKD
As of November 1, 2026
Save £617 GBP (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,084 GBP at NZ Jewellers · As of September 25, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548272242. Listed at 14 retailers as of November 1, 2026, with a 135% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 1548272242
Dimensions5.70 × 6.37 × 3.75 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
5.70 mm6.37 mm0.80 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1548272242
Side View
Table 60.0%CrownGirdle: MED-VTKPavilion 39.7°Culet: NoneDepth 58.8%

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 1
Current: £594 GBP|Low: £429 GBP|High: £1,202 GBP|Avg: £726 GBP|-8.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 6£458 GBP
Retailer 8£529 GBP
Retailer 9£541 GBP
Retailer 7£546 GBP
Retailer 1£594 GBP
Retailer 2£597 GBP
Retailer 3£728 GBP
Retailer 12£734 GBP
Retailer 11£873 GBP
Retailer 10£904 GBP
Retailer 4£938 GBP
Retailer 5£1,075 GBP

31 data points across 12 retailers

14 retailers£458 GBP to £1,075 GBP

A
Cheapest Retailer
-
£458 GBP
HK$4,800 HKD
A
Retailer 2
-
£529 GBP
$710 USD
View
A
Retailer 3
-
£541 GBP
$726 USD
View
Final sale: no returns
A
Retailer 4
-
£546 GBP
€698 EUR
View
A
Retailer 5
-
£594 GBP
View
Retailer 6
-
£597 GBP
SGD 1,082 SGD
View
Price last confirmed 11 days ago
A
Retailer 7
-
£728 GBP
SGD 1,320 SGD
View
A
Retailer 8
-
£734 GBP
$985 USD
View
Retailer 9
-
£873 GBP
$1,172 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£876 GBP
A$1,808 AUD
View
B+
Retailer 11
-
£904 GBP
ZAR 19,603 ZAR
View
Retailer 12
-
£938 GBP
A$1,936 AUD
View
Price last confirmed 30 days ago
B+
Retailer 13
-
£1,075 GBP
View
Most Expensive
NZ Jewellers
a27168c1-31c8-4a3b-a75f-28b32703880b · Sep 25
£2,084 GBP
$2,797 USD
View
Price last confirmed 38 days ago
13 more retailers have this diamond
Prices start from £458 GBPSave up to £617 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
£458 GBP