Heart|Natural|GIA

0.50ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 1549270646

Certificate GIA 1549270646

Diamond specifications and retailer prices

From £383 GBP
As of November 6, 2026
Save £634 GBP (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,473 GBP at NZ Jewellers · As of September 25, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1549270646. Listed at 15 retailers as of November 4, 2026, with a 166% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

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

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle42.5°
OriginNatural
Grading LabGIA
CertificateGIA 1549270646
Dimensions4.63 × 5.48 × 3.26 mm
L/W Ratio1.18
Girdle conditionFaceted
Top View
4.63 mm5.48 mm0.50 ctD / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1549270646
Side View
Table 60.0%CrownGirdle: THN-THKPavilion 42.5°Culet: 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 6
Current: £462 GBP|Low: £316 GBP|High: £1,017 GBP|Avg: £543 GBP|-3.7%
Retailer 1
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 6, 2026
Retailer 14£383 GBP
Retailer 4£406 GBP
Retailer 3£418 GBP
Retailer 1£462 GBP
Retailer 7£466 GBP
Retailer 5£492 GBP
Retailer 9£524 GBP
Retailer 8£536 GBP
Retailer 13£583 GBP
Retailer 2£610 GBP
Retailer 12£669 GBP
Retailer 10£680 GBP
Retailer 6£688 GBP
Retailer 11£1,017 GBP

33 data points across 14 retailers

15 retailers£383 GBP to £1,017 GBP

A
Cheapest Retailer
-
£383 GBP
A
Retailer 2
-
£406 GBP
View
Final sale: no returns
A
Retailer 3
-
£418 GBP
View
A
Retailer 4
-
£462 GBP
View
A
Retailer 5
-
£466 GBP
View
Retailer 6
-
£486 GBP
View
Price last confirmed 36 days ago
B+
Retailer 7
-
£524 GBP
View
B+
Retailer 8
-
£536 GBP
View
B+
Retailer 9
-
£583 GBP
View
B+
Retailer 10
-
£610 GBP
View
B+
Retailer 11
-
£669 GBP
View
B+
Retailer 12
-
£680 GBP
View
Retailer 13
-
£688 GBP
View
Price last confirmed 33 days ago
B
Retailer 14
-
£1,017 GBP
View
Most Expensive
NZ Jewellers
c97ed23a-563d-491f-9c32-2685a32f1ea9 · Sep 25
£1,473 GBP
$1,971 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from £383 GBPSave up to £634 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
£383 GBP