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Oval|Natural|GIA

1.23ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 3555616415

Certificate GIA 3555616415

Diamond specifications and retailer prices

From £2,737 GBP
As of November 6, 2026
Save £1,148 GBP (30%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,885 GBP at 77 Diamonds · As of November 7, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555616415. Listed at 4 retailers as of November 6, 2026, with prices from £2,737 to £3,885, a £1,148 spread on the same certified stone. 77 Diamonds lists it at £3,885. 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

1.23
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle40.77°
OriginNatural
Grading LabGIA
CertificateGIA 3555616415
Dimensions8.20 × 5.98 × 3.82 mm
L/W Ratio1.37
Culet sizeNone
Top View
8.20 mm5.98 mm1.23 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555616415
Side View
Table 60.0%Crown 39.8°Girdle: MED-THKPavilion 40.77°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £3,885 GBP|Low: £1,688 GBP|High: £4,483 GBP|Avg: £3,020 GBP|-0.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 7, 2026
Retailer 3£1,688 GBP
Retailer 8£2,358 GBP
Retailer 12£2,468 GBP
Retailer 9£2,473 GBP
Retailer 4£2,737 GBP
Retailer 14£2,756 GBP
Retailer 11£2,977 GBP
Retailer 7£3,042 GBP
Retailer 6£3,248 GBP
Retailer 13£3,293 GBP
Retailer 2£3,744 GBP
Retailer 10£3,783 GBP
77 Diamonds£3,885 GBP
Retailer 5£4,483 GBP

33 data points across 14 retailers

4 retailers£2,737 GBP to £3,885 GBP

B+
Cheapest Retailer
-
£2,737 GBP
B
Retailer 2
-
£3,042 GBP
View
B
Retailer 3
-
£3,744 GBP
View
Most Expensive
B
77 Diamonds
OVMBNU8JVFUT · Nov 7
£3,885 GBP
View
3 more retailers have this diamond
Prices start from £2,737 GBPSave up to £1,148 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
£2,737 GBP