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Oval|Natural|GIA

0.42ct I SI1 Oval Natural Diamond

GD • I/SI1 • GIA 2557904125

Certificate GIA 2557904125

Diamond specifications and retailer prices

From $423 AUD
$297 USD
As of November 2, 2026
Save $142 AUD (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $565 AUD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.42ct natural oval diamond

This 0.42ct natural oval sits in the sub-half-carat band, graded I 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 2557904125. Listed at 3 retailers as of November 2, 2026, with prices from $423 to $565, a $142 spread on the same certified stone. 77 Diamonds lists it at $565. 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

0.42
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557904125
Dimensions5.77 × 4.21 × 2.63 mm
L/W Ratio1.37
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
5.77 mm4.21 mm0.42 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557904125
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $565 AUD|Low: $357 AUD|High: $565 AUD|Avg: $465 AUD|+3.5%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$423 AUD
Retailer 2$441 AUD
77 Diamonds$565 AUD

37 data points across 3 retailers

3 retailers$423 AUD to $565 AUD

B+
Cheapest Retailer
-
$423 AUD
$297 USD
Final sale: no returns
B+
Retailer 2
-
$441 AUD
SGD 419 SGD
View
Most Expensive
B+
77 Diamonds
OVCPEEMTVWDW · Nov 2
$565 AUD
£312 GBP
View
2 more retailers have this diamond
Prices start from $423 AUDSave up to $142 AUD

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+
0.42ct Oval
$423 AUD