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Oval|Natural|GIA

0.45ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 1559909590

Certificate GIA 1559909590

Diamond specifications and retailer prices

From £270 GBP
As of November 6, 2026
Save £72 GBP (21%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £342 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.45ct natural oval diamond

This 0.45ct natural oval sits in the sub-half-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 1559909590. Listed at 2 retailers as of November 6, 2026, with prices from £270 to £342, a £72 spread on the same certified stone. 77 Diamonds lists it at £342. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1559909590
Dimensions5.81 × 4.24 × 2.77 mm
L/W Ratio1.37
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather
Top View
5.81 mm4.24 mm0.45 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 1559909590
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £342 GBP|Low: £270 GBP|High: £345 GBP|Avg: £304 GBP|+3.1%
77 Diamonds
Retailer 2
November 6, 2026
Retailer 2£270 GBP
77 Diamonds£342 GBP

40 data points across 2 retailers

2 retailers£270 GBP to £342 GBP

B+
Cheapest Retailer
-
£270 GBP
Most Expensive
B
77 Diamonds
OVCPJSE7TYQ7 · Nov 6
£342 GBP
View
1 more retailer has this diamond
Prices start from £270 GBPSave up to £72 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+
0.45ct Oval
£270 GBP