Heart|Natural|GIA

0.42ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6515482839

Certificate GIA 6515482839

Diamond specifications and retailer prices

From £344 GBP
As of November 1, 2026
14 retailers carry this diamond
Most expensive: £1,381 GBP at NZ Jewellers · As of October 18, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6515482839. Listed at 14 retailers as of November 1, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.42
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.61°
Pavilion angle38.78°
OriginNatural
Grading LabGIA
CertificateGIA 6515482839
Dimensions4.45 × 5.19 × 3.09 mm
L/W Ratio1.17
Top View
4.45 mm5.19 mm0.42 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6515482839
Side View
Table 57.0%Crown 37.61°Girdle: STK-VTKPavilion 38.78°Culet: NoneDepth 59.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,381 GBP|Low: £341 GBP|High: £1,381 GBP|Avg: £522 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 2£344 GBP
Retailer 11£360 GBP
Retailer 4£388 GBP
Retailer 13£388 GBP
Retailer 5£399 GBP
Retailer 9£416 GBP
Retailer 12£468 GBP
Retailer 8£478 GBP
Retailer 6£511 GBP
Retailer 3£562 GBP
Retailer 14£577 GBP
Retailer 7£716 GBP
Retailer 10£817 GBP
NZ Jewellers£1,381 GBP

45 data points across 14 retailers

14 retailers

A
Cheapest Retailer
-
£344 GBP
Retailer 2
-
£360 GBP
$483 USD
View
Price last confirmed 14 days ago
Retailer 3
-
£388 GBP
$520 USD
View
Price last confirmed 16 days ago
Retailer 4
-
£416 GBP
$557 USD
View
Price last confirmed 13 days ago
Retailer 5
-
£458 GBP
$614 USD
View
Price last confirmed 14 days ago
Retailer 6
-
£468 GBP
$627 USD
View
Price last confirmed 13 days ago
Retailer 7
-
£478 GBP
View
Price last confirmed 9 days ago
Retailer 8
-
£478 GBP
$641 USD
View
Price last confirmed 14 days ago
Retailer 9
-
£511 GBP
$685 USD
View
Price last confirmed 12 days ago
Retailer 10
-
£562 GBP
ZAR 12,156 ZAR
View
Price last confirmed 29 days ago
Retailer 11
-
£577 GBP
A$1,189 AUD
View
Price last confirmed 28 days ago
Retailer 12
-
£716 GBP
View
Price last confirmed 13 days ago
Retailer 13
-
£817 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
b61d1706-0b99-4ac6-8a3f-f74469a6ef83 · Oct 18
£1,381 GBP
$1,850 USD
View
Price under review
13 more retailers have this diamond
Prices start from £344 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
£344 GBP