Heart|Natural|GIA

0.70ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 3545584525

Certificate GIA 3545584525

Diamond specifications and retailer prices

From £506 GBP
HK$5,300 HKD
As of October 30, 2026
Save £410 GBP (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,100 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 D 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 3545584525. Listed at 15 retailers as of October 30, 2026, with a 81% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle42.9°
OriginNatural
Grading LabGIA
CertificateGIA 3545584525
Dimensions5.33 × 6.00 × 3.81 mm
L/W Ratio1.13
Top View
5.33 mm6.00 mm0.70 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3545584525
Side View
Table 55.0%CrownGirdle: THN-VTKPavilion 42.9°Culet: NoneDepth 63.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £676 GBP|Low: £478 GBP|High: £1,230 GBP|Avg: £772 GBP|+4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 10£506 GBP
Retailer 14£599 GBP
Retailer 12£612 GBP
Retailer 8£618 GBP
Retailer 7£622 GBP
Retailer 9£653 GBP
Retailer 1£676 GBP
Retailer 13£710 GBP
Retailer 2£725 GBP
Retailer 3£769 GBP
Retailer 11£971 GBP
Retailer 5£971 GBP
Retailer 6£976 GBP
Retailer 4£1,203 GBP

35 data points across 14 retailers

15 retailers£506 GBP to £916 GBP

A
Cheapest Retailer
-
£506 GBP
HK$5,300 HKD
A
Retailer 2
-
£599 GBP
$802 USD
View
Final sale: no returns
A
Retailer 3
-
£612 GBP
$820 USD
View
Retailer 4
-
£618 GBP
$828 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
£622 GBP
€794 EUR
View
A
Retailer 6
-
£653 GBP
$875 USD
View
B+
Retailer 7
-
£676 GBP
View
Retailer 8
-
£710 GBP
SGD 1,285 SGD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£725 GBP
SGD 1,313 SGD
View
B+
Retailer 10
-
£916 GBP
A$1,888 AUD
View
Retailer 11
-
£971 GBP
$1,301 USD
View
Price last confirmed 8 days ago
Retailer 12
-
£971 GBP
ZAR 21,023 ZAR
View
Price last confirmed 27 days ago
Retailer 13
-
£976 GBP
A$2,012 AUD
View
Price last confirmed 27 days ago
Retailer 14
-
£1,203 GBP
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
951c75a6-2b99-41f4-88e4-bef0c0321b9f · Sep 25
£2,100 GBP
$2,814 USD
View
Price last confirmed 36 days ago
14 more retailers have this diamond
Prices start from £506 GBPSave up to £410 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
£506 GBP