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Marquise|Natural|GIA

0.52ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 2558092034

Certificate GIA 2558092034

Diamond specifications and retailer prices

From £453 GBP
SGD 820 SGD
As of November 2, 2026
Save £73 GBP (14%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £525 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.52ct natural marquise diamond

This 0.52ct natural marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2558092034. Listed at 3 retailers as of October 31, 2026, with prices from £453 to £525, a £73 spread on the same certified stone. Blue Nile lists it at £525. 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

0.52
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2558092034
Dimensions8.10 × 4.23 × 2.69 mm
L/W Ratio1.91
Top View
8.10 mm4.23 mm0.52 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2558092034
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £525 GBP|Low: £431 GBP|High: £543 GBP|Avg: £486 GBP|-3.3%
Blue Nile
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£453 GBP
Retailer 2£509 GBP
Blue Nile£525 GBP

39 data points across 3 retailers

3 retailers£453 GBP to £525 GBP

A
Cheapest Retailer
-
£453 GBP
SGD 820 SGD
B+
Retailer 2
-
£509 GBP
View
Most Expensive
B+
Blue Nile
28907864 · Oct 31
£525 GBP
$704 USD
View
2 more retailers have this diamond
Prices start from £453 GBPSave up to £73 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
0.52ct Marquise
£453 GBP