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Heart|Natural|GIA

0.70ct E SI1 Heart Natural Diamond

ID • E/SI1 • GIA 6531970235

Certificate GIA 6531970235

Diamond specifications and retailer prices

From £519 GBP
HK$5,400 HKD
As of October 29, 2026
Save £480 GBP (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,242 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531970235. Listed at 15 retailers as of October 23, 2026, with a 92% 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle39.9°
OriginNatural
Grading LabGIA
CertificateGIA 6531970235
Dimensions5.48 × 6.21 × 3.57 mm
L/W Ratio1.13
Top View
5.48 mm6.21 mm0.70 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6531970235
Side View
Table 58.0%CrownGirdle: MED-THKPavilion 39.9°Culet: NoneDepth 57.5%

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: Oct 29
Current: £638 GBP|Low: £490 GBP|High: £1,326 GBP|Avg: £802 GBP|-8.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 10£519 GBP
Retailer 14£611 GBP
Retailer 12£631 GBP
Retailer 8£636 GBP
Retailer 1£638 GBP
Retailer 9£674 GBP
Retailer 7£675 GBP
Retailer 13£735 GBP
Retailer 3£781 GBP
Retailer 2£802 GBP
Retailer 4£940 GBP
Retailer 6£945 GBP
Retailer 11£999 GBP
Retailer 5£1,165 GBP

34 data points across 14 retailers

15 retailers£519 GBP to £999 GBP

A
Cheapest Retailer
-
£519 GBP
HK$5,400 HKD
A
Retailer 2
-
£611 GBP
$814 USD
View
Final sale: no returns
A
Retailer 3
-
£631 GBP
$840 USD
View
A
Retailer 4
-
£636 GBP
$847 USD
View
A
Retailer 5
-
£638 GBP
€809 EUR
View
B+
Retailer 6
-
£674 GBP
$898 USD
View
A
Retailer 7
-
£675 GBP
View
B+
Retailer 8
-
£735 GBP
SGD 1,323 SGD
View
B+
Retailer 9
-
£802 GBP
SGD 1,443 SGD
View
Retailer 10
-
£936 GBP
$1,247 USD
View
Price last confirmed 27 days ago
Retailer 11
-
£940 GBP
ZAR 20,233 ZAR
View
Price last confirmed 25 days ago
Retailer 12
-
£945 GBP
A$1,936 AUD
View
Price last confirmed 25 days ago
B+
Retailer 13
-
£999 GBP
$1,331 USD
View
Retailer 14
-
£1,165 GBP
View
Price last confirmed 24 days ago
Most Expensive
NZ Jewellers
817d6bc0-b671-4e19-8797-0536d7a16e93 · Sep 25
£2,242 GBP
$2,986 USD
View
Price last confirmed 34 days ago
14 more retailers have this diamond
Prices start from £519 GBPSave up to £480 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
£519 GBP