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Heart|Natural|IGI

0.70ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 815656685

Shape and cutting style on the report: Heart brilliant

Certificate IGI 815656685

Diamond specifications and retailer prices

From £346 GBP
As of November 6, 2026
Save £1,145 GBP (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,491 GBP at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815656685. Listed at 16 retailers as of November 5, 2026, with prices from £346 to £1,491, a £1,145 spread on the same certified stone. NZ Jewellers lists it at £1,491. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.70
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.7°
Pavilion angle37.2°
OriginNatural
Grading LabIGI
CertificateIGI 815656685
Dimensions5.54 × 6.18 × 3.47 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
5.54 mm6.18 mm0.70 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 815656685
Side View
Table 58.0%Crown 38.7°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 56.1%

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 6
Current: £1,491 GBP|Low: £346 GBP|High: £1,503 GBP|Avg: £640 GBP|-0.8%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 9£346 GBP
Retailer 14£403 GBP
Retailer 15£475 GBP
Retailer 4£513 GBP
Retailer 8£517 GBP
Retailer 16£525 GBP
Retailer 12£540 GBP
Retailer 13£548 GBP
Retailer 7£577 GBP
Retailer 10£596 GBP
Retailer 5£616 GBP
Retailer 11£635 GBP
Retailer 3£711 GBP
Retailer 2£714 GBP
Retailer 6£1,103 GBP
NZ Jewellers£1,491 GBP

10 data points across 16 retailers

16 retailers£346 GBP to £1,491 GBP

A
Cheapest Retailer
-
£346 GBP
A
Retailer 2
-
£403 GBP
View
B+
Retailer 3
-
£475 GBP
View
B+
Retailer 4
-
£513 GBP
View
Retailer 5
-
£517 GBP
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£525 GBP
View
B+
Retailer 7
-
£540 GBP
View
B+
Retailer 8
-
£548 GBP
View
B+
Retailer 9
-
£577 GBP
View
B+
Retailer 10
-
£596 GBP
View
B+
Retailer 11
-
£616 GBP
View
B+
Retailer 12
-
£635 GBP
View
B
Retailer 13
-
£711 GBP
View
B
Retailer 14
-
£714 GBP
View
C
Retailer 15
-
£1,103 GBP
View
Most Expensive
C
NZ Jewellers
02e7521d-e04f-4c3d-bb35-65081b24d9ee · Nov 5
£1,491 GBP
$1,996 USD
View
15 more retailers have this diamond
Prices start from £346 GBPSave up to £1,145 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
£346 GBP