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Heart|Natural|GIA

0.51ct G VS1 Heart Natural Diamond

GD • G/VS1 • GIA 6545195206

Certificate GIA 6545195206

Diamond specifications and retailer prices

From £385 GBP
As of November 4, 2026
Save £116 GBP (23%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £501 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6545195206. Listed at 6 retailers as of November 4, 2026, with prices from £385 to £501, a £116 spread on the same certified stone. Blue Nile lists it at £501. 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

0.51
Carat
G
Colour
VS1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545195206
Dimensions5.07 × 5.54 × 3.29 mm
L/W Ratio1.09
Top View
5.07 mm5.54 mm0.51 ctG / VS1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6545195206
Side View
Table 55.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.4%

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 4
Current: £501 GBP|Low: £353 GBP|High: £572 GBP|Avg: £464 GBP|-12.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3£385 GBP
Retailer 5£393 GBP
Retailer 6£430 GBP
Retailer 2£477 GBP
Retailer 4£489 GBP
Blue Nile£501 GBP

42 data points across 6 retailers

6 retailers£385 GBP to £501 GBP

A
Cheapest Retailer
-
£385 GBP
A
Retailer 2
-
£393 GBP
View
Final sale: no returns
A
Retailer 3
-
£430 GBP
View
B+
Retailer 4
-
£477 GBP
View
B+
Retailer 5
-
£489 GBP
View
Most Expensive
B+
Blue Nile
27518861 · Nov 5
£501 GBP
$676 USD
View
5 more retailers have this diamond
Prices start from £385 GBPSave up to £116 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
0.51ct Heart
£385 GBP