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Oval|Natural|GIA

2.50ct J SI1 Oval Natural Diamond

GD • J/SI1 • GIA 6555983666

Certificate GIA 6555983666

Diamond specifications and retailer prices

From £6,228 GBP
SGD 11,276 SGD
As of October 31, 2026
Save £5,696 GBP (48%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £11,923 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 2.5ct natural oval diamond

This 2.5ct natural oval sits in the two to three carat band, graded J 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 6555983666. Listed at 11 retailers as of October 30, 2026, with prices from £6,228 to £11,923, a £5,696 spread on the same certified stone. With Clarity lists it at £11,923. 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

2.50
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.97°
Pavilion angle41.04°
OriginNatural
Grading LabGIA
CertificateGIA 6555983666
Dimensions10.02 × 7.35 × 4.99 mm
L/W Ratio1.36
Culet sizeNone
Top View
10.02 mm7.35 mm2.50 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555983666
Side View
Table 60.0%Crown 43.97°Girdle: STK-VTKPavilion 41.04°Culet: NoneDepth 67.8%

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 31
Current: £7,427 GBP|Low: £6,228 GBP|High: £12,537 GBP|Avg: £8,757 GBP|-7.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
November 1, 2026
Retailer 7£6,228 GBP
Retailer 6£6,652 GBP
Retailer 5£7,321 GBP
Retailer 8£7,355 GBP
Retailer 1£7,427 GBP
Retailer 4£8,473 GBP
Retailer 10£8,493 GBP
Retailer 9£8,575 GBP
Retailer 2£8,919 GBP
Retailer 3£9,982 GBP
With Clarity£11,923 GBP

37 data points across 11 retailers

11 retailers£6,228 GBP to £11,923 GBP

A
Cheapest Retailer
-
£6,228 GBP
SGD 11,276 SGD
A
Retailer 2
-
£6,652 GBP
SGD 12,044 SGD
View
B+
Retailer 3
-
£7,321 GBP
$9,810 USD
View
B+
Retailer 4
-
£7,355 GBP
$9,855 USD
View
B+
Retailer 5
-
£7,427 GBP
View
B+
Retailer 6
-
£8,473 GBP
€10,812 EUR
View
B+
Retailer 7
-
£8,493 GBP
$11,380 USD
View
B+
Retailer 8
-
£8,575 GBP
$11,490 USD
View
B+
Retailer 9
-
£8,919 GBP
$11,950 USD
View
B+
Retailer 10
-
£9,982 GBP
$13,375 USD
View
Most Expensive
B
With Clarity
6555983666 · Oct 30
£11,923 GBP
$15,976 USD
View
10 more retailers have this diamond
Prices start from £6,228 GBPSave up to £5,696 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
2.50ct Oval
£6,228 GBP