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Heart|Natural|GIA

0.70ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 5546746867

Certificate GIA 5546746867

Diamond specifications and retailer prices

From £430 GBP
HK$4,500 HKD
As of November 1, 2026
Save £764 GBP (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,678 GBP at NZ Jewellers · As of October 24, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546746867. Listed at 17 retailers as of November 1, 2026, with a 178% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle37.5°
OriginNatural
Grading LabGIA
CertificateGIA 5546746867
Dimensions5.45 × 6.15 × 3.51 mm
L/W Ratio1.13
Top View
5.45 mm6.15 mm0.70 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546746867
Side View
Table 58.0%CrownGirdle: MED-THKPavilion 37.5°Culet: NoneDepth 57.0%

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: £1,678 GBP|Low: £430 GBP|High: £1,790 GBP|Avg: £731 GBP|-6.3%
NZ Jewellers
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
November 2, 2026
Retailer 9£430 GBP
Retailer 13£476 GBP
Retailer 12£485 GBP
Retailer 11£511 GBP
Retailer 8£540 GBP
Retailer 6£551 GBP
Retailer 7£580 GBP
Retailer 2£652 GBP
Retailer 3£668 GBP
Retailer 5£687 GBP
Retailer 14£799 GBP
Retailer 4£802 GBP
Retailer 10£1,194 GBP
NZ Jewellers£1,678 GBP

24 data points across 14 retailers

17 retailers£430 GBP to £1,194 GBP

A
Cheapest Retailer
-
£430 GBP
HK$4,500 HKD
B+
Retailer 2
-
£476 GBP
$638 USD
View
Final sale: no returns
A
Retailer 3
-
£485 GBP
$650 USD
View
B+
Retailer 4
-
£511 GBP
€652 EUR
View
B+
Retailer 5
-
£540 GBP
$724 USD
View
Retailer 6
-
£551 GBP
SGD 998 SGD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
£580 GBP
View
B+
Retailer 8
-
£652 GBP
View
B+
Retailer 9
-
£668 GBP
$895 USD
View
B+
Retailer 10
-
£687 GBP
$920 USD
View
B
Retailer 11
-
£799 GBP
ZAR 17,292 ZAR
View
Retailer 12
-
£802 GBP
$1,074 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
£809 GBP
A$1,668 AUD
View
Retailer 14
-
£858 GBP
A$1,770 AUD
View
Price last confirmed 29 days ago
C
Retailer 15
-
£1,194 GBP
View
Retailer 16
-
£1,678 GBP
$2,248 USD
View
Price under review
Most Expensive
NZ Jewellers
0984f624-595c-46f3-a587-08f4c4961065 · Oct 24
£1,678 GBP
$2,248 USD
View
Price under review
16 more retailers have this diamond
Prices start from £430 GBPSave up to £764 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