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Oval|Natural|GIA

1.23ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 1549087761

Certificate GIA 1549087761

Diamond specifications and retailer prices

From £2,570 GBP
$3,440 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: £2,570 GBP at Shane Co
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Shane Co

About this 1.23ct natural oval diamond

This 1.23ct natural oval sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1549087761. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.23
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549087761
Dimensions8.54 × 5.97 × 3.78 mm
L/W Ratio1.43
Key to symbols
Crystal, Feather, Needle
Top View
8.54 mm5.97 mm1.23 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549087761
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.3%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: £2,120 GBP|Low: £1,981 GBP|High: £2,605 GBP|Avg: £2,310 GBP|-6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Shane Co
September 18, 2026
Retailer 2£1,981 GBP
Retailer 1£2,120 GBP
Retailer 3£2,297 GBP
Retailer 4£2,477 GBP
Shane Co£2,570 GBP

82 data points across 5 retailers

1 retailer

C
Shane Co
26H0NVR · Nov 6
£2,570 GBP
$3,440 USD
View

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C
1.23ct Oval
£2,570 GBP