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Marquise|Natural|GIA

0.50ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 6541520345

Certificate GIA 6541520345

Diamond specifications and retailer prices

From £370 GBP
₹47,196 INR
As of November 1, 2026
Save £1,068 GBP (74%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,437 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541520345. Listed at 15 retailers as of October 30, 2026, with prices from £370 to £1,437, a £1,068 spread on the same certified stone. NZ Jewellers lists it at £1,437. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541520345
Dimensions8.21 × 4.06 × 2.52 mm
L/W Ratio2.02
Top View
8.21 mm4.06 mm0.50 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541520345
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 62.2%

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 1
Current: £370 GBP|Low: £369 GBP|High: £1,071 GBP|Avg: £565 GBP|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 1£370 GBP
Retailer 7£420 GBP
Retailer 8£422 GBP
Retailer 2£466 GBP
Retailer 9£493 GBP
Retailer 10£554 GBP
Retailer 3£563 GBP
Retailer 6£574 GBP
Retailer 5£676 GBP
Retailer 4£1,059 GBP

37 data points across 10 retailers

15 retailers£370 GBP to £1,437 GBP

A
Cheapest Retailer
-
£370 GBP
₹47,196 INR
Retailer 2
-
£420 GBP
SGD 760 SGD
View
Price last confirmed 10 days ago
A
Retailer 3
-
£422 GBP
$566 USD
View
Final sale: no returns
A
Retailer 4
-
£458 GBP
$614 USD
View
A
Retailer 5
-
£466 GBP
$625 USD
View
A
Retailer 6
-
£493 GBP
$661 USD
View
A
Retailer 7
-
£493 GBP
$661 USD
View
A
Retailer 8
-
£528 GBP
$708 USD
View
Retailer 9
-
£554 GBP
View
Price last confirmed 32 days ago
A
Retailer 10
-
£557 GBP
$746 USD
View
A
Retailer 11
-
£563 GBP
View
A
Retailer 12
-
£574 GBP
View
B+
Retailer 13
-
£676 GBP
€863 EUR
View
B
Retailer 14
-
£1,059 GBP
View
Most Expensive
B
NZ Jewellers
3a0a683c-6847-478a-8fd9-c7ff839e6d66 · Oct 30
£1,437 GBP
$1,926 USD
View
14 more retailers have this diamond
Prices start from £370 GBPSave up to £1,068 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 Marquise
£370 GBP