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Heart|Natural|HRD

1.55ct D SI1 Heart Natural Diamond

GD • D/SI1 • HRD 210000080770

Certificate HRD 210000080770

Diamond specifications and retailer prices

From £6,483 GBP
As of November 5, 2026
Save £6,073 GBP (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £12,556 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by HRD 210000080770. Listed at 9 retailers as of November 5, 2026, with prices from £6,483 to £12,556, a £6,073 spread on the same certified stone. NZ Jewellers lists it at £12,556. 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

1.55
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 210000080770
Dimensions8.63 × 8.06 × 3.35 mm
L/W Ratio1.07
Top View
8.63 mm8.06 mm1.55 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateHRD 210000080770
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 41.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £12,556 GBP|Low: £4,861 GBP|High: £12,556 GBP|Avg: £7,645 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£4,861 GBP
Retailer 9£6,483 GBP
Retailer 7£6,489 GBP
Retailer 8£6,880 GBP
Retailer 5£7,507 GBP
Retailer 3£7,621 GBP
Retailer 4£7,623 GBP
Retailer 2£7,778 GBP
Retailer 6£8,662 GBP
NZ Jewellers£12,556 GBP

24 data points across 10 retailers

9 retailers£6,483 GBP to £12,556 GBP

B
Cheapest Retailer
-
£6,483 GBP
B
Retailer 2
-
£6,489 GBP
View
B
Retailer 3
-
£6,880 GBP
View
B
Retailer 4
-
£7,507 GBP
View
B
Retailer 5
-
£7,621 GBP
View
B
Retailer 6
-
£7,623 GBP
View
B
Retailer 7
-
£7,778 GBP
View
C
Retailer 8
-
£8,662 GBP
View
Most Expensive
C
NZ Jewellers
eb479cc7-7966-43d7-998d-e7c1ebff8686 · Nov 5
£12,556 GBP
$16,806 USD
View
8 more retailers have this diamond
Prices start from £6,483 GBPSave up to £6,073 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.

B
1.55ct Heart
£6,483 GBP