Heart|Natural|GIA

0.50ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 5566351843

Certificate GIA 5566351843

Diamond specifications and retailer prices

From £394 GBP
As of November 1, 2026
Save £516 GBP (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,236 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.5ct natural heart diamond

This 0.5ct natural heart sits in the half to three-quarter 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 5566351843. Listed at 13 retailers as of November 1, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5566351843
Dimensions4.66 × 5.25 × 3.34 mm
L/W Ratio1.13
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal, Indented Natural
Top View
4.66 mm5.25 mm0.50 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5566351843
Side View
Table 59.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 63.6%

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 1
Current: £484 GBP|Low: £333 GBP|High: £922 GBP|Avg: £505 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10£364 GBP
Retailer 4£400 GBP
Retailer 9£406 GBP
Retailer 2£411 GBP
Retailer 11£424 GBP
Retailer 1£484 GBP
Retailer 12£492 GBP
Retailer 8£494 GBP
Retailer 5£495 GBP
Retailer 3£542 GBP
Retailer 7£608 GBP
Retailer 6£911 GBP

33 data points across 12 retailers

13 retailers£394 GBP to £911 GBP

A
Cheapest Retailer
-
£394 GBP
A
Retailer 2
-
£406 GBP
View
Retailer 3
-
£411 GBP
View
Price last confirmed 10 days ago
Retailer 4
-
£424 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£455 GBP
View
B+
Retailer 6
-
£484 GBP
View
B+
Retailer 7
-
£492 GBP
View
B+
Retailer 8
-
£494 GBP
View
B+
Retailer 9
-
£495 GBP
View
B+
Retailer 10
-
£542 GBP
View
Retailer 11
-
£608 GBP
View
Price last confirmed 7 days ago
B
Retailer 12
-
£911 GBP
View
Most Expensive
NZ Jewellers
bb0aeafb-226f-42f0-a73c-6f7e95eeb8b6 · Oct 30
£1,236 GBP
$1,655 USD
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from £394 GBPSave up to £516 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
0.50ct Heart
£394 GBP