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Heart|Natural|GIA

0.42ct J VS1 Heart Natural Diamond

EX • J/VS1 • GIA 6525910623

Certificate GIA 6525910623

Diamond specifications and retailer prices

From £300 GBP
$402 USD
As of November 3, 2026
Save £392 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,148 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.42ct natural heart diamond

This 0.42ct natural heart sits in the sub-half-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6525910623. Listed at 16 retailers as of November 2, 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. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.42
Carat
J
Colour
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6525910623
Dimensions4.90 × 5.15 × 2.86 mm
L/W Ratio1.05
Top View
4.90 mm5.15 mm0.42 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6525910623
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.5%

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 3
Current: £392 GBP|Low: £323 GBP|High: £700 GBP|Avg: £490 GBP|+5.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 8£323 GBP
Retailer 1£392 GBP
Retailer 5£458 GBP
Retailer 6£464 GBP
Retailer 7£480 GBP
Retailer 3£495 GBP
Retailer 2£596 GBP
Retailer 4£692 GBP

38 data points across 8 retailers

16 retailers£300 GBP to £692 GBP

A
Cheapest Retailer
-
£300 GBP
$402 USD
Retailer 2
-
£314 GBP
SGD 570 SGD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
£323 GBP
$433 USD
View
B+
Retailer 4
-
£323 GBP
$433 USD
View
B+
Retailer 5
-
£346 GBP
$464 USD
View
B+
Retailer 6
-
£346 GBP
$464 USD
View
B+
Retailer 7
-
£392 GBP
View
B+
Retailer 8
-
£397 GBP
$533 USD
View
B+
Retailer 9
-
£407 GBP
$546 USD
View
B+
Retailer 10
-
£458 GBP
$615 USD
View
B+
Retailer 11
-
£464 GBP
ZAR 10,067 ZAR
View
Retailer 12
-
£480 GBP
A$990 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
£495 GBP
€632 EUR
View
B
Retailer 14
-
£596 GBP
View
B
Retailer 15
-
£692 GBP
View
Most Expensive
NZ Jewellers
2e7ce644-c3f4-4b19-bd96-16969bb18c91 · Nov 3
£1,148 GBP
$1,540 USD
View
Price under review
15 more retailers have this diamond
Prices start from £300 GBPSave up to £392 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
0.42ct Heart
£300 GBP