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Heart|Natural|GIA

0.70ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 3545515302

Certificate GIA 3545515302

Diamond specifications and retailer prices

From £548 GBP
HK$5,700 HKD
As of October 29, 2026
Save £500 GBP (48%) vs most expensive(unlock to see where)
17 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 3545515302. Listed at 17 retailers as of October 23, 2026, with a 91% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 3545515302
Dimensions5.50 × 6.05 × 3.61 mm
L/W Ratio1.10
Top View
5.50 mm6.05 mm0.70 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545515302
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 39.6°Culet: NoneDepth 59.6%

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: £712 GBP|Low: £519 GBP|High: £1,326 GBP|Avg: £848 GBP|-10.9%
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
Retailer 15
October 30, 2026
Retailer 12£548 GBP
Retailer 2£634 GBP
Retailer 8£665 GBP
Retailer 10£667 GBP
Retailer 14£668 GBP
Retailer 11£702 GBP
Retailer 1£712 GBP
Retailer 15£769 GBP
Retailer 3£789 GBP
Retailer 5£803 GBP
Retailer 9£962 GBP
Retailer 6£1,027 GBP
Retailer 7£1,032 GBP
Retailer 13£1,048 GBP
Retailer 4£1,269 GBP

32 data points across 15 retailers

17 retailers£548 GBP to £1,048 GBP

A
Cheapest Retailer
-
£548 GBP
HK$5,700 HKD
B+
Retailer 2
-
£634 GBP
$844 USD
View
Final sale: no returns
A
Retailer 3
-
£665 GBP
€844 EUR
View
A
Retailer 4
-
£667 GBP
$888 USD
View
A
Retailer 5
-
£668 GBP
$890 USD
View
B+
Retailer 6
-
£702 GBP
$935 USD
View
B+
Retailer 7
-
£712 GBP
View
Retailer 8
-
£769 GBP
SGD 1,383 SGD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£789 GBP
SGD 1,419 SGD
View
Retailer 10
-
£936 GBP
$1,247 USD
View
Price last confirmed 27 days ago
B+
Retailer 11
-
£962 GBP
€1,220 EUR
View
B+
Retailer 12
-
£985 GBP
A$2,018 AUD
View
Retailer 13
-
£1,027 GBP
ZAR 22,092 ZAR
View
Price last confirmed 25 days ago
Retailer 14
-
£1,032 GBP
A$2,114 AUD
View
Price last confirmed 26 days ago
B
Retailer 15
-
£1,048 GBP
$1,395 USD
View
Retailer 16
-
£1,269 GBP
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
918bb3bf-b5ec-4cd7-abd8-cc9e0072295a · Sep 25
£2,242 GBP
$2,986 USD
View
Price last confirmed 34 days ago
16 more retailers have this diamond
Prices start from £548 GBPSave up to £500 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
£548 GBP