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Heart|Natural|GIA

0.70ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6545991055

Certificate GIA 6545991055

Diamond specifications and retailer prices

From £430 GBP
As of November 7, 2026
Save £709 GBP (62%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,713 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.7ct natural heart diamond

This 0.7ct natural heart sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545991055. Listed at 12 retailers as of November 7, 2026, with a 165% 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

0.70
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545991055
Dimensions5.39 × 6.38 × 3.77 mm
L/W Ratio1.18
Top View
5.39 mm6.38 mm0.70 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545991055
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.1%

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 7
Current: £560 GBP|Low: £370 GBP|High: £1,210 GBP|Avg: £640 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 9£430 GBP
Retailer 11£457 GBP
Retailer 10£478 GBP
Retailer 6£525 GBP
Retailer 8£534 GBP
Retailer 1£560 GBP
Retailer 5£605 GBP
Retailer 2£618 GBP
Retailer 3£675 GBP
Retailer 7£766 GBP
Retailer 4£1,139 GBP

36 data points across 11 retailers

12 retailers£430 GBP to £1,139 GBP

A
Cheapest Retailer
-
£430 GBP
A
Retailer 2
-
£457 GBP
View
Final sale: no returns
A
Retailer 3
-
£478 GBP
View
A
Retailer 4
-
£525 GBP
View
A
Retailer 5
-
£534 GBP
View
B+
Retailer 6
-
£560 GBP
View
B+
Retailer 7
-
£605 GBP
View
Retailer 8
-
£618 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£675 GBP
View
B+
Retailer 10
-
£766 GBP
View
B
Retailer 11
-
£1,139 GBP
View
Most Expensive
NZ Jewellers
78f71ba1-99ef-4103-802b-060cb142a4d8 · Sep 25
£1,713 GBP
$2,293 USD
View
Price under review
11 more retailers have this diamond
Prices start from £430 GBPSave up to £709 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
0.70ct Heart
£430 GBP