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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 6555994075

Certificate GIA 6555994075

Diamond specifications and retailer prices

From £382 GBP
HK$4,000 HKD
As of November 1, 2026
Save £1,022 GBP (73%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,403 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555994075. Listed at 19 retailers as of October 30, 2026, with prices from £382 to £1,403, a £1,022 spread on the same certified stone. NZ Jewellers lists it at £1,403. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555994075
Dimensions7.51 × 3.97 × 2.65 mm
L/W Ratio1.89
Top View
7.51 mm3.97 mm0.50 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555994075
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 66.7%

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: £1,403 GBP|Low: £382 GBP|High: £1,499 GBP|Avg: £630 GBP|-6.4%
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 8£382 GBP
Retailer 6£412 GBP
Retailer 3£447 GBP
Retailer 9£476 GBP
Retailer 16£482 GBP
Retailer 17£482 GBP
Retailer 5£516 GBP
Retailer 7£516 GBP
Retailer 14£546 GBP
Retailer 2£549 GBP
Retailer 10£550 GBP
Retailer 4£561 GBP
Retailer 15£589 GBP
Retailer 12£661 GBP
Retailer 13£691 GBP
Retailer 11£1,033 GBP
NZ Jewellers£1,403 GBP

25 data points across 17 retailers

19 retailers£382 GBP to £1,403 GBP

A
Cheapest Retailer
-
£382 GBP
HK$4,000 HKD
A
Retailer 2
-
£412 GBP
$553 USD
View
Final sale: no returns
A
Retailer 3
-
£447 GBP
$600 USD
View
Retailer 4
-
£476 GBP
SGD 864 SGD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£482 GBP
$647 USD
View
A
Retailer 6
-
£482 GBP
$647 USD
View
A
Retailer 7
-
£516 GBP
$693 USD
View
A
Retailer 8
-
£516 GBP
$693 USD
View
B+
Retailer 9
-
£546 GBP
$732 USD
View
B+
Retailer 10
-
£549 GBP
View
B+
Retailer 11
-
£550 GBP
View
B+
Retailer 12
-
£561 GBP
View
B+
Retailer 13
-
£589 GBP
$790 USD
View
Retailer 14
-
£633 GBP
$850 USD
View
Price last confirmed 62 days ago
B+
Retailer 15
-
£661 GBP
€845 EUR
View
B
Retailer 16
-
£691 GBP
ZAR 14,972 ZAR
View
Retailer 17
-
£734 GBP
A$1,515 AUD
View
Price last confirmed 28 days ago
B
Retailer 18
-
£1,033 GBP
View
Most Expensive
B
NZ Jewellers
d839fdcb-b7a7-44c4-8ad4-8fd77cab87a5 · Oct 30
£1,403 GBP
$1,883 USD
View
18 more retailers have this diamond
Prices start from £382 GBPSave up to £1,022 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
£382 GBP