CaratHunter
Plans
Heart|Natural|GIA

0.53ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 6542133689

Certificate GIA 6542133689

Diamond specifications and retailer prices

From £294 GBP
As of November 6, 2026
Save £94 GBP (24%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £388 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.53ct natural heart diamond

This 0.53ct natural heart sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6542133689. Listed at 4 retailers as of November 5, 2026, with prices from £294 to £388, a £94 spread on the same certified stone. Blue Nile lists it at £388. 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

0.53
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542133689
Dimensions5.09 × 5.85 × 3.23 mm
L/W Ratio1.15
Top View
5.09 mm5.85 mm0.53 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6542133689
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 55.3%

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 6
Current: £388 GBP|Low: £271 GBP|High: £451 GBP|Avg: £353 GBP|-13.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 3£294 GBP
Retailer 4£316 GBP
Retailer 2£362 GBP
Blue Nile£388 GBP

40 data points across 4 retailers

4 retailers£294 GBP to £388 GBP

A
Cheapest Retailer
-
£294 GBP
Final sale: no returns
A
Retailer 2
-
£316 GBP
View
B+
Retailer 3
-
£362 GBP
View
Most Expensive
B+
Blue Nile
27466642 · Nov 5
£388 GBP
$519 USD
View
3 more retailers have this diamond
Prices start from £294 GBPSave up to £94 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
0.53ct Heart
£294 GBP