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Heart|Natural|HRD

1.70ct K SI2 Heart Natural Diamond

ID • K/SI2 • HRD 230000005157

Shape and cutting style on the report: Heart

Certificate HRD 230000005157

Diamond specifications and retailer prices

From £1,655 GBP
As of November 5, 2026
Save £1,806 GBP (52%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,461 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.7ct natural heart diamond

This 1.7ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 230000005157. Listed at 6 retailers as of November 5, 2026, with prices from £1,655 to £3,461, a £1,806 spread on the same certified stone. NZ Jewellers lists it at £3,461. 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

1.70
Carat
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 230000005157
Dimensions6.74 × 7.72 × 4.34 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Top View
6.74 mm7.72 mm1.70 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 230000005157
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 56.0%

Caratlytics Score

How it works →
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: Nov 5
Current: £3,461 GBP|Low: £1,287 GBP|High: £3,461 GBP|Avg: £2,051 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 9£1,287 GBP
Retailer 8£1,623 GBP
Retailer 3£1,655 GBP
Retailer 5£1,655 GBP
Retailer 6£1,732 GBP
Retailer 4£1,910 GBP
Retailer 7£2,107 GBP
Retailer 2£2,900 GBP
NZ Jewellers£3,461 GBP

19 data points across 9 retailers

6 retailers£1,655 GBP to £3,461 GBP

A
Cheapest Retailer
-
£1,655 GBP
Retailer 2
-
£1,655 GBP
View
Price last confirmed 8 days ago
A
Retailer 3
-
£1,732 GBP
View
B+
Retailer 4
-
£1,910 GBP
View
B+
Retailer 5
-
£2,900 GBP
View
Most Expensive
B
NZ Jewellers
af463677-2a07-4cd2-bfc6-b5a25b2f4cb9 · Nov 5
£3,461 GBP
$4,632 USD
View
5 more retailers have this diamond
Prices start from £1,655 GBPSave up to £1,806 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
1.70ct Heart
£1,655 GBP