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Oval|Natural|GIA

4.05ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6485912553

Certificate GIA 6485912553

Diamond specifications and retailer prices

From £28,200 GBP
$37,785 USD
As of October 28, 2026
Save £10,249 GBP (27%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £38,449 GBP at Yorxs · As of October 28, 2026
View at Yorxs

About this 4.05ct natural oval diamond

This 4.05ct natural oval sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6485912553. Listed at 16 retailers as of October 28, 2026, with prices from £28,200 to £38,449, a £10,249 spread on the same certified stone. Yorxs lists it at £38,449. 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

4.05
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6485912553
Dimensions13.58 × 9.12 × 5.21 mm
L/W Ratio1.49
Top View
13.58 mm9.12 mm4.05 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6485912553
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 57.1%

Caratlytics Score

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

Price History

Last verified: Oct 28
Current: £29,611 GBP|Low: £28,200 GBP|High: £38,449 GBP|Avg: £31,651 GBP|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Yorxs
October 30, 2026
Retailer 3£28,200 GBP
Retailer 5£28,481 GBP
Retailer 1£29,611 GBP
Retailer 2£32,120 GBP
Retailer 4£32,788 GBP
Yorxs£38,449 GBP

45 data points across 6 retailers

16 retailers£28,200 GBP to £38,449 GBP

B+
Cheapest Retailer
-
£28,200 GBP
$37,785 USD
B+
Retailer 2
-
£28,481 GBP
$38,162 USD
View
B+
Retailer 3
-
£29,611 GBP
₹3,778,572 INR
View
B+
Retailer 4
-
£29,862 GBP
$40,012 USD
View
B+
Retailer 5
-
£30,284 GBP
$40,577 USD
View
B+
Retailer 6
-
£30,565 GBP
$40,954 USD
View
B+
Retailer 7
-
£30,659 GBP
CA$57,054 CAD
View
B
Retailer 8
-
£31,115 GBP
$41,691 USD
View
B
Retailer 9
-
£32,120 GBP
View
B
Retailer 10
-
£32,788 GBP
$43,932 USD
View
B+
Retailer 11
-
£33,000 GBP
$44,217 USD
View
B
Retailer 12
-
£34,070 GBP
$45,650 USD
View
B
Retailer 13
-
£34,070 GBP
$45,650 USD
View
B
Retailer 14
-
£35,204 GBP
$47,170 USD
View
B
Retailer 15
-
£35,705 GBP
$47,841 USD
View
Most Expensive
B
Yorxs
594936427 · Oct 28
£38,449 GBP
€49,064 EUR
View
15 more retailers have this diamond
Prices start from £28,200 GBPSave up to £10,249 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+
4.05ct Oval
£28,200 GBP