CaratHunter
Plans
Marquise|Natural|GIA

0.50ct I SI2 Marquise Natural Diamond

GD • I/SI2 • GIA 3495457549

Certificate GIA 3495457549

Diamond specifications and retailer prices

From £411 GBP
$551 USD
As of November 2, 2026
Save £984 GBP (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,395 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3495457549. Listed at 15 retailers as of October 30, 2026, with prices from £411 to £1,395, a £984 spread on the same certified stone. NZ Jewellers lists it at £1,395. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3495457549
Dimensions8.57 × 4.12 × 2.45 mm
L/W Ratio2.08
Top View
8.57 mm4.12 mm0.50 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3495457549
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,395 GBP|Low: £411 GBP|High: £1,419 GBP|Avg: £644 GBP|-1.7%
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
November 2, 2026
Retailer 6£411 GBP
Retailer 5£421 GBP
Retailer 13£445 GBP
Retailer 14£455 GBP
Retailer 11£479 GBP
Retailer 12£479 GBP
Retailer 9£513 GBP
Retailer 7£531 GBP
Retailer 4£542 GBP
Retailer 3£543 GBP
Retailer 8£546 GBP
Retailer 10£657 GBP
Retailer 2£1,027 GBP
NZ Jewellers£1,395 GBP

34 data points across 14 retailers

15 retailers£411 GBP to £1,395 GBP

B+
Cheapest Retailer
-
£411 GBP
$551 USD
Final sale: no returns
B+
Retailer 2
-
£421 GBP
$565 USD
View
B+
Retailer 3
-
£445 GBP
$597 USD
View
B+
Retailer 4
-
£455 GBP
$610 USD
View
B+
Retailer 5
-
£479 GBP
$643 USD
View
B+
Retailer 6
-
£479 GBP
$643 USD
View
B+
Retailer 7
-
£513 GBP
$689 USD
View
B+
Retailer 8
-
£513 GBP
$689 USD
View
B+
Retailer 9
-
£531 GBP
View
B+
Retailer 10
-
£542 GBP
$728 USD
View
B
Retailer 11
-
£543 GBP
$729 USD
View
B
Retailer 12
-
£546 GBP
View
B
Retailer 13
-
£657 GBP
€840 EUR
View
Retailer 14
-
£1,027 GBP
View
Most Expensive
C
NZ Jewellers
8c84a93b-6b69-4708-9dff-9ab79c4ae0b9 · Oct 30
£1,395 GBP
$1,872 USD
View
14 more retailers have this diamond
Prices start from £411 GBPSave up to £984 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.

B+
0.50ct Marquise
£411 GBP