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Heart|Natural|GIA

0.80ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 2554513237

Certificate GIA 2554513237

Diamond specifications and retailer prices

From £685 GBP
$918 USD
As of October 31, 2026
Save £155 GBP (18%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £840 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.8ct natural heart diamond

This 0.8ct natural heart sits in the just-under-one-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 GIA 2554513237. Listed at 6 retailers as of October 31, 2026, with prices from £685 to £840, a £155 spread on the same certified stone. Blue Nile lists it at £840. 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

0.80
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554513237
Dimensions5.42 × 6.44 × 3.85 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather
Top View
5.42 mm6.44 mm0.80 ctD / SI1
OriginNatural
CutGood
PolishGood
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554513237
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.8%

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: Oct 31
Current: £840 GBP|Low: £584 GBP|High: £942 GBP|Avg: £762 GBP|-10.8%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 4£685 GBP
Retailer 6£692 GBP
Retailer 3£725 GBP
Retailer 5£771 GBP
Retailer 2£778 GBP
Blue Nile£840 GBP

40 data points across 6 retailers

6 retailers£685 GBP to £840 GBP

A
Cheapest Retailer
-
£685 GBP
$918 USD
Final sale: no returns
A
Retailer 2
-
£692 GBP
MYR 3,776 MYR
View
A
Retailer 3
-
£725 GBP
$972 USD
View
A
Retailer 4
-
£771 GBP
SGD 1,396 SGD
View
A
Retailer 5
-
£778 GBP
View
Most Expensive
B+
Blue Nile
29422206 · Oct 31
£840 GBP
$1,126 USD
View
5 more retailers have this diamond
Prices start from £685 GBPSave up to £155 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
0.80ct Heart
£685 GBP