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Round|Natural|GIA

1.54ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2546914140

Certificate GIA 2546914140

Diamond specifications and retailer prices

From £3,734 GBP
As of November 6, 2026
Save £553 GBP (13%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £4,287 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.54ct natural round diamond

This 1.54ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2546914140. Listed at 3 retailers as of November 6, 2026, with a relatively tight 15% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2546914140
Dimensions7.31 × 7.35 × 4.59 mm
L/W Ratio1.01
Top View
7.31 mm7.35 mm1.54 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2546914140
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°CuletDepth 62.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £4,287 GBP|Low: £3,159 GBP|High: £4,357 GBP|Avg: £3,765 GBP|-0.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4£3,159 GBP
Retailer 3£3,429 GBP
Retailer 2£3,734 GBP
Retailer 5£4,176 GBP
77 Diamonds£4,287 GBP

34 data points across 5 retailers

3 retailers£3,734 GBP to £4,287 GBP

B
Cheapest Retailer
-
£3,734 GBP
Retailer 2
-
£3,734 GBP
View
Price last confirmed 18 days ago
Most Expensive
B
77 Diamonds
RBMBWXBA22ZE · Nov 6
£4,287 GBP
View
2 more retailers have this diamond
Prices start from £3,734 GBPSave up to £553 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
£3,734 GBP