CaratHunter
Plans
Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 2556768032

Certificate GIA 2556768032

Diamond specifications and retailer prices

From £448 GBP
HK$4,700 HKD
As of November 1, 2026
Save £644 GBP (59%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,869 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556768032. Listed at 22 retailers as of November 1, 2026, with a 144% 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
OriginNatural
Grading LabGIA
CertificateGIA 2556768032
Dimensions8.56 × 4.04 × 2.45 mm
L/W Ratio2.12
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
8.56 mm4.04 mm0.50 ctD / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556768032
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 60.5%

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 1
Current: £1,869 GBP|Low: £448 GBP|High: £1,869 GBP|Avg: £752 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 5£448 GBP
Retailer 2£452 GBP
Retailer 17£532 GBP
Retailer 7£550 GBP
Retailer 6£592 GBP
Retailer 3£596 GBP
Retailer 18£596 GBP
Retailer 8£604 GBP
Retailer 19£619 GBP
Retailer 4£688 GBP
Retailer 10£695 GBP
Retailer 9£699 GBP
Retailer 13£711 GBP
Retailer 11£723 GBP
Retailer 12£732 GBP
Retailer 15£843 GBP
Retailer 16£920 GBP
Retailer 14£1,092 GBP
NZ Jewellers£1,869 GBP

26 data points across 19 retailers

22 retailers£448 GBP to £1,092 GBP

A
Cheapest Retailer
-
£448 GBP
HK$4,700 HKD
A
Retailer 2
-
£452 GBP
₹57,718 INR
View
A
Retailer 3
-
£532 GBP
$714 USD
View
A
Retailer 4
-
£550 GBP
$738 USD
View
Final sale: no returns
A
Retailer 5
-
£563 GBP
A$1,163 AUD
View
A
Retailer 6
-
£592 GBP
$795 USD
View
A
Retailer 7
-
£596 GBP
$800 USD
View
B+
Retailer 8
-
£596 GBP
$800 USD
View
B+
Retailer 9
-
£604 GBP
$811 USD
View
A
Retailer 10
-
£619 GBP
$831 USD
View
B+
Retailer 11
-
£630 GBP
SGD 1,142 SGD
View
B+
Retailer 12
-
£688 GBP
$923 USD
View
B+
Retailer 13
-
£695 GBP
$933 USD
View
B+
Retailer 14
-
£699 GBP
$938 USD
View
B+
Retailer 15
-
£711 GBP
View
B+
Retailer 16
-
£723 GBP
$970 USD
View
B+
Retailer 17
-
£732 GBP
View
B+
Retailer 18
-
£843 GBP
€1,078 EUR
View
Retailer 19
-
£912 GBP
A$1,882 AUD
View
Price last confirmed 29 days ago
B+
Retailer 20
-
£920 GBP
ZAR 19,947 ZAR
View
B
Retailer 21
-
£1,092 GBP
View
Most Expensive
NZ Jewellers
a2996ab4-2dd5-48d5-b50e-8c135cfd64fa · Oct 30
£1,869 GBP
$2,508 USD
View
Price under review
21 more retailers have this diamond
Prices start from £448 GBPSave up to £644 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
£448 GBP