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Round|Natural|GIA

1.23ct J VVS1 Round Natural Diamond

VG • J/VVS1 • GIA 5191740364

Certificate GIA 5191740364

Diamond specifications and retailer prices

From £3,838 GBP
As of November 5, 2026
Save £383 GBP (9%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £4,221 GBP at Jared · As of November 6, 2026
View at Jared

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by GIA 5191740364. Listed at 4 retailers as of November 5, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5191740364
Dimensions7.07 × 7.06 mm
L/W Ratio1.00
Top View
7.07 mm7.06 mm1.23 ctJ / VVS1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5191740364
Side View
Table 61.0%CrownGirdle: VTN-STKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £4,221 GBP|Low: £3,496 GBP|High: £4,565 GBP|Avg: £4,055 GBP|-7.5%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
September 26, 2026
Retailer 2£3,838 GBP
Retailer 5£3,840 GBP
Retailer 3£4,087 GBP
Retailer 4£4,087 GBP
Jared£4,221 GBP

8 data points across 5 retailers

4 retailers£3,838 GBP to £4,221 GBP

B
Cheapest Retailer
-
£3,838 GBP
B
Retailer 2
-
£4,087 GBP
View
B
Retailer 3
-
£4,087 GBP
View
Most Expensive
B
Jared
113466673 · Nov 6
£4,221 GBP
$5,650 USD
View
3 more retailers have this diamond
Prices start from £3,838 GBPSave up to £383 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 Round
£3,838 GBP