Oval|Natural|GIA

0.42ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2567308241

Certificate GIA 2567308241

Diamond specifications and retailer prices

From £199 GBP
₹25,355 INR
As of November 1, 2026
Save £441 GBP (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,062 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2567308241. Listed at 18 retailers as of November 1, 2026, with a 222% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2567308241
Dimensions5.76 × 4.10 × 2.70 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal
Top View
5.76 mm4.10 mm0.42 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2567308241
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.0%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £1,062 GBP|Low: £198 GBP|High: £1,062 GBP|Avg: £427 GBP
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
November 1, 2026
Retailer 2£199 GBP
Retailer 13£277 GBP
Retailer 4£284 GBP
Retailer 11£299 GBP
Retailer 12£309 GBP
Retailer 6£361 GBP
Retailer 3£373 GBP
Retailer 10£430 GBP
Retailer 8£440 GBP
Retailer 5£444 GBP
Retailer 9£509 GBP
Retailer 7£640 GBP
NZ Jewellers£1,062 GBP

33 data points across 13 retailers

18 retailers£199 GBP to £640 GBP

A
Cheapest Retailer
-
£199 GBP
₹25,355 INR
A
Retailer 2
-
£221 GBP
$296 USD
View
A
Retailer 3
-
£277 GBP
$371 USD
View
A
Retailer 4
-
£284 GBP
$380 USD
View
B+
Retailer 5
-
£299 GBP
$400 USD
View
B+
Retailer 6
-
£309 GBP
$414 USD
View
B+
Retailer 7
-
£319 GBP
$428 USD
View
B+
Retailer 8
-
£361 GBP
View
B+
Retailer 9
-
£373 GBP
$500 USD
View
B
Retailer 10
-
£393 GBP
$527 USD
View
B
Retailer 11
-
£400 GBP
$535 USD
View
B+
Retailer 12
-
£430 GBP
ZAR 9,301 ZAR
View
B
Retailer 13
-
£440 GBP
$590 USD
View
Retailer 14
-
£444 GBP
A$915 AUD
View
Price last confirmed 29 days ago
B
Retailer 15
-
£509 GBP
€649 EUR
View
Retailer 16
-
£568 GBP
View
Price last confirmed 33 days ago
B
Retailer 17
-
£640 GBP
View
Most Expensive
NZ Jewellers
19167d30-ac14-4561-adf8-6abcb924a775 · Oct 30
£1,062 GBP
$1,423 USD
View
Price under review
17 more retailers have this diamond
Prices start from £199 GBPSave up to £441 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
0.42ct Oval
£199 GBP