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Heart|Natural|GIA

0.70ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 3545350518

Certificate GIA 3545350518

Diamond specifications and retailer prices

From £602 GBP
HK$6,300 HKD
As of November 1, 2026
Save £275 GBP (31%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,924 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 3545350518. Listed at 15 retailers as of October 31, 2026, with a 46% 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
SymmetryVery Good
FluorescenceNone
Pavilion angle42.1°
OriginNatural
Grading LabGIA
CertificateGIA 3545350518
Dimensions5.32 × 6.33 × 3.76 mm
L/W Ratio1.19
Top View
5.32 mm6.33 mm0.70 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545350518
Side View
Table 59.0%CrownGirdle: STK-VTKPavilion 42.1°Culet: NoneDepth 59.3%

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: £602 GBP|Low: £592 GBP|High: £1,449 GBP|Avg: £920 GBP
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
November 1, 2026
Retailer 1£602 GBP
Retailer 15£708 GBP
Retailer 9£724 GBP
Retailer 10£739 GBP
Retailer 11£761 GBP
Retailer 8£788 GBP
Retailer 12£794 GBP
Retailer 14£868 GBP
Retailer 2£876 GBP
Retailer 4£877 GBP
Retailer 5£994 GBP
Retailer 7£1,004 GBP
Retailer 6£1,149 GBP
Retailer 13£1,195 GBP
Retailer 3£1,420 GBP

34 data points across 15 retailers

15 retailers£602 GBP to £876 GBP

A
Cheapest Retailer
-
£602 GBP
HK$6,300 HKD
B+
Retailer 2
-
£708 GBP
$949 USD
View
Final sale: no returns
B+
Retailer 3
-
£724 GBP
€925 EUR
View
B+
Retailer 4
-
£739 GBP
$990 USD
View
Retailer 5
-
£761 GBP
$1,020 USD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
£788 GBP
View
B+
Retailer 7
-
£794 GBP
$1,064 USD
View
Retailer 8
-
£868 GBP
SGD 1,572 SGD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£876 GBP
SGD 1,587 SGD
View
Retailer 10
-
£994 GBP
$1,332 USD
View
Price last confirmed 24 days ago
Retailer 11
-
£1,004 GBP
A$2,070 AUD
View
Price last confirmed 28 days ago
Retailer 12
-
£1,149 GBP
ZAR 24,879 ZAR
View
Price last confirmed 28 days ago
Retailer 13
-
£1,195 GBP
$1,602 USD
View
Price last confirmed 8 days ago
Retailer 14
-
£1,420 GBP
View
Price last confirmed 24 days ago
Most Expensive
NZ Jewellers
7603499f-f3b1-469c-8534-8a4632af099b · Sep 25
£1,924 GBP
$2,578 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from £602 GBPSave up to £275 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
£602 GBP