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Oval|Natural|GIA

1.23ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 2487659567

Certificate GIA 2487659567

Diamond specifications and retailer prices

From £2,254 GBP
As of November 5, 2026
Save £1,368 GBP (38%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,622 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

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 2487659567. Listed at 5 retailers as of November 5, 2026, with prices from £2,254 to £3,622, a £1,368 spread on the same certified stone. 77 Diamonds lists it at £3,622. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2487659567
Dimensions8.71 × 6.12 × 3.53 mm
L/W Ratio1.42
Top View
8.71 mm6.12 mm1.23 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2487659567
Side View
Table 56.0%CrownGirdle: ThickPavilionCulet: NoneDepth 57.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £3,622 GBP|Low: £2,254 GBP|High: £3,671 GBP|Avg: £2,786 GBP|+1.1%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 3£2,254 GBP
Retailer 2£2,459 GBP
77 Diamonds£3,622 GBP

35 data points across 3 retailers

5 retailers£2,254 GBP to £3,622 GBP

B
Cheapest Retailer
-
£2,254 GBP
B
Retailer 2
-
£2,441 GBP
View
B
Retailer 3
-
£2,451 GBP
View
B
Retailer 4
-
£2,459 GBP
View
Most Expensive
B
77 Diamonds
OVZFJZ7G6UT · Nov 6
£3,622 GBP
View
4 more retailers have this diamond
Prices start from £2,254 GBPSave up to £1,368 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
1.23ct Oval
£2,254 GBP