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Round|Natural|GIA

1.54ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 6311378608

Certificate GIA 6311378608

Diamond specifications and retailer prices

From £4,182 GBP
As of November 5, 2026
Save £550 GBP (12%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £4,732 GBP at Yorxs · As of November 5, 2026
View at Yorxs

About this 1.54ct natural round diamond

This 1.54ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6311378608. Listed at 2 retailers as of November 5, 2026, with a relatively tight 13% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.54
Carat
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6311378608
Dimensions7.38 × 7.40 × 4.60 mm
L/W Ratio1.00
Top View
7.38 mm7.40 mm1.54 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6311378608
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.3%

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: £4,182 GBP|Low: £3,497 GBP|High: £4,763 GBP|Avg: £4,146 GBP|-0.2%
Retailer 1
Retailer 2
Yorxs
November 5, 2026
Retailer 2£3,497 GBP
Retailer 1£4,182 GBP
Yorxs£4,732 GBP

38 data points across 3 retailers

2 retailers£4,182 GBP to £4,732 GBP

B
Cheapest Retailer
-
£4,182 GBP
Most Expensive
B
Yorxs
59CDD26BE · Nov 5
£4,732 GBP
€6,065 EUR
View
1 more retailer has this diamond
Prices start from £4,182 GBPSave up to £550 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
1.54ct Round
£4,182 GBP