CaratHunter
Plans
Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7568189493

Certificate GIA 7568189493

Diamond specifications and retailer prices

From £448 GBP
HK$4,700 HKD
As of November 1, 2026
Save £664 GBP (60%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,905 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 7568189493. Listed at 21 retailers as of November 1, 2026, with a 148% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7568189493
Dimensions8.55 × 4.06 × 2.49 mm
L/W Ratio2.11
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
8.55 mm4.06 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7568189493
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.3%

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: £1,112 GBP|Low: £448 GBP|High: £1,126 GBP|Avg: £730 GBP|-1.3%
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
November 2, 2026
Retailer 5£448 GBP
Retailer 10£542 GBP
Retailer 12£560 GBP
Retailer 11£563 GBP
Retailer 13£616 GBP
Retailer 4£630 GBP
Retailer 7£725 GBP
Retailer 2£730 GBP
Retailer 6£746 GBP
Retailer 8£858 GBP
Retailer 3£913 GBP
Retailer 9£937 GBP
Retailer 1£1,112 GBP

38 data points across 13 retailers

21 retailers£448 GBP to £1,112 GBP

A
Cheapest Retailer
-
£448 GBP
HK$4,700 HKD
A
Retailer 2
-
£542 GBP
$727 USD
View
A
Retailer 3
-
£560 GBP
$751 USD
View
Final sale: no returns
A
Retailer 4
-
£563 GBP
$755 USD
View
B+
Retailer 5
-
£607 GBP
$815 USD
View
B+
Retailer 6
-
£607 GBP
$815 USD
View
B+
Retailer 7
-
£616 GBP
$826 USD
View
B+
Retailer 8
-
£630 GBP
SGD 1,142 SGD
View
B+
Retailer 9
-
£630 GBP
$846 USD
View
B+
Retailer 10
-
£700 GBP
$940 USD
View
B+
Retailer 11
-
£706 GBP
$948 USD
View
B+
Retailer 12
-
£725 GBP
View
B+
Retailer 13
-
£730 GBP
$980 USD
View
B+
Retailer 14
-
£746 GBP
View
B
Retailer 15
-
£808 GBP
A$1,668 AUD
View
B+
Retailer 16
-
£816 GBP
$1,095 USD
View
B+
Retailer 17
-
£858 GBP
€1,097 EUR
View
Retailer 18
-
£913 GBP
A$1,885 AUD
View
Price last confirmed 29 days ago
B
Retailer 19
-
£937 GBP
ZAR 20,324 ZAR
View
B
Retailer 20
-
£1,112 GBP
View
Most Expensive
NZ Jewellers
cbf7951b-ab4b-429a-bd5d-a04bbfbd6413 · Oct 30
£1,905 GBP
$2,556 USD
View
Price under review
20 more retailers have this diamond
Prices start from £448 GBPSave up to £664 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