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Marquise|Natural|GIA

0.45ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 5553804383

Certificate GIA 5553804383

Diamond specifications and retailer prices

From £374 GBP
As of November 1, 2026
Save £120 GBP (24%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £494 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.45ct natural marquise diamond

This 0.45ct natural marquise sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5553804383. Listed at 3 retailers as of November 1, 2026, with prices from £374 to £494, a £120 spread on the same certified stone. 77 Diamonds lists it at £494. 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

0.45
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553804383
Dimensions7.55 × 4.09 × 2.59 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
7.55 mm4.09 mm0.45 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553804383
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.3%

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 1
Current: £494 GBP|Low: £374 GBP|High: £499 GBP|Avg: £437 GBP|+4.0%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2£374 GBP
Retailer 3£442 GBP
77 Diamonds£494 GBP

41 data points across 3 retailers

3 retailers£374 GBP to £494 GBP

A
Cheapest Retailer
-
£374 GBP
B+
Retailer 2
-
£442 GBP
View
Most Expensive
B
77 Diamonds
MQCP5MYKR3RG · Nov 6
£494 GBP
View
2 more retailers have this diamond
Prices start from £374 GBPSave up to £120 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
0.45ct Marquise
£374 GBP