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Oval|Natural|GIA

0.30ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 2558315389

Certificate GIA 2558315389

Diamond specifications and retailer prices

From £143 GBP
₹18,280 INR
As of October 27, 2026
Save £201 GBP (58%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £344 GBP at 77 Diamonds · As of October 25, 2026
View at 77 Diamonds

About this 0.3ct natural oval diamond

This 0.3ct 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 2558315389. Listed at 5 retailers as of October 25, 2026, with prices from £143 to £344, a £201 spread on the same certified stone. 77 Diamonds lists it at £344. 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

0.30
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558315389
Dimensions5.17 × 3.81 × 2.34 mm
L/W Ratio1.36
Culet sizeNone
Top View
5.17 mm3.81 mm0.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558315389
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.4%

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: Oct 27
Current: £344 GBP|Low: £143 GBP|High: £344 GBP|Avg: £263 GBP|-0.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 27, 2026
Retailer 2£143 GBP
Retailer 5£238 GBP
Retailer 3£316 GBP
Retailer 4£344 GBP
77 Diamonds£344 GBP

7 data points across 5 retailers

5 retailers£143 GBP to £344 GBP

A
Cheapest Retailer
-
£143 GBP
₹18,280 INR
B+
Retailer 2
-
£238 GBP
A$492 AUD
View
B
Retailer 3
-
£316 GBP
ZAR 6,849 ZAR
View
B
Retailer 4
-
£344 GBP
€439 EUR
View
Most Expensive
B
77 Diamonds
OVCPCCZ7R5DX · Oct 25
£344 GBP
View
4 more retailers have this diamond
Prices start from £143 GBPSave up to £201 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
0.30ct Oval
£143 GBP