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Marquise|Natural|GIA

0.50ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 1565001209

Certificate GIA 1565001209

Diamond specifications and retailer prices

From £411 GBP
HK$4,300 HKD
As of November 1, 2026
Save £1,122 GBP (73%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,533 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 1565001209. Listed at 17 retailers as of October 30, 2026, with prices from £411 to £1,533, a £1,122 spread on the same certified stone. NZ Jewellers lists it at £1,533. 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
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565001209
Dimensions8.28 × 4.07 × 2.47 mm
L/W Ratio2.03
Key to symbols
Crystal, Needle, Feather
Top View
8.28 mm4.07 mm0.50 ctD / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1565001209
Side View
Table 54.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.6%

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 1
Current: £1,533 GBP|Low: £392 GBP|High: £1,596 GBP|Avg: £644 GBP|+4.4%
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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 3£411 GBP
Retailer 4£451 GBP
Retailer 15£489 GBP
Retailer 17£489 GBP
Retailer 6£496 GBP
Retailer 16£508 GBP
Retailer 8£508 GBP
Retailer 9£564 GBP
Retailer 14£564 GBP
Retailer 5£580 GBP
Retailer 10£584 GBP
Retailer 7£587 GBP
Retailer 2£597 GBP
Retailer 13£612 GBP
Retailer 12£718 GBP
Retailer 11£1,129 GBP
NZ Jewellers£1,533 GBP

29 data points across 17 retailers

17 retailers£411 GBP to £1,533 GBP

A
Cheapest Retailer
-
£411 GBP
HK$4,300 HKD
A
Retailer 2
-
£451 GBP
$604 USD
View
Final sale: no returns
A
Retailer 3
-
£489 GBP
$655 USD
View
A
Retailer 4
-
£489 GBP
$655 USD
View
A
Retailer 5
-
£496 GBP
$665 USD
View
A
Retailer 6
-
£508 GBP
$680 USD
View
A
Retailer 7
-
£508 GBP
SGD 920 SGD
View
A
Retailer 8
-
£564 GBP
$756 USD
View
Retailer 9
-
£564 GBP
$756 USD
View
Price last confirmed 14 days ago
A
Retailer 10
-
£580 GBP
$777 USD
View
A
Retailer 11
-
£584 GBP
View
B+
Retailer 12
-
£587 GBP
$787 USD
View
B+
Retailer 13
-
£597 GBP
View
B+
Retailer 14
-
£612 GBP
View
B+
Retailer 15
-
£718 GBP
€916 EUR
View
B
Retailer 16
-
£1,129 GBP
View
Most Expensive
B
NZ Jewellers
f7525088-09f3-4acf-89c1-450817655470 · Oct 30
£1,533 GBP
$2,054 USD
View
16 more retailers have this diamond
Prices start from £411 GBPSave up to £1,122 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
£411 GBP