CaratHunter
Plans
Heart|Natural|HRD

1.00ct D SI2 Heart Natural Diamond

EX • D/SI2 • HRD 260000171306

Certificate HRD 260000171306

Diamond specifications and retailer prices

From £1,239 GBP
As of November 4, 2026
Save £2,037 GBP (62%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,275 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000171306. Listed at 9 retailers as of November 4, 2026, with prices from £1,239 to £3,275, a £2,037 spread on the same certified stone. NZ Jewellers lists it at £3,275. 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

1.00
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000171306
Dimensions7.14 × 5.94 × 4.15 mm
L/W Ratio1.20
Girdle conditionFaceted
Top View
7.14 mm5.94 mm1.00 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000171306
Side View
Table 54.0%CrownGirdle: MediumPavilionCuletDepth 58.2%

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 4
Current: £3,275 GBP|Low: £1,136 GBP|High: £3,275 GBP|Avg: £1,793 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8£1,239 GBP
Retailer 4£1,343 GBP
Retailer 6£1,343 GBP
Retailer 7£1,405 GBP
Retailer 5£1,550 GBP
Retailer 2£1,824 GBP
Retailer 3£2,346 GBP
NZ Jewellers£3,275 GBP

27 data points across 8 retailers

9 retailers£1,239 GBP to £3,275 GBP

A
Cheapest Retailer
-
£1,239 GBP
Final sale: no returns
A
Retailer 2
-
£1,343 GBP
View
Retailer 3
-
£1,343 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£1,405 GBP
View
Retailer 5
-
£1,550 GBP
View
Price last confirmed 66 days ago
B+
Retailer 6
-
£1,550 GBP
View
B+
Retailer 7
-
£1,824 GBP
View
B
Retailer 8
-
£2,346 GBP
View
Most Expensive
B
NZ Jewellers
53961e53-fcad-4326-bf8e-6c1dc63eafd6 · Nov 5
£3,275 GBP
$4,384 USD
View
8 more retailers have this diamond
Prices start from £1,239 GBPSave up to £2,037 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
1.00ct Heart
£1,239 GBP