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Round|Natural|GIA

1.54ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1409252458

Certificate GIA 1409252458

Diamond specifications and retailer prices

From £3,908 GBP
As of November 1, 2026
Save £4,674 GBP (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £8,582 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1409252458. Listed at 15 retailers as of November 1, 2026, with prices from £3,908 to £8,582, a £4,674 spread on the same certified stone. NZ Jewellers lists it at £8,582. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1409252458
Dimensions7.35 × 7.31 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional twinning wisps pinpoints and surface graining are not shown.
Key to symbols
Feather, Crystal, Twinning Wisp, Cavity, Needle, Indented Natural
Top View
7.35 mm7.31 mm1.54 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1409252458
Side View
Table 57.0%Crown 36°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £8,582 GBP|Low: £3,908 GBP|High: £8,582 GBP|Avg: £5,490 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7£3,908 GBP
Retailer 8£4,054 GBP
Retailer 11£4,327 GBP
Retailer 4£4,649 GBP
Retailer 10£4,649 GBP
Retailer 12£4,649 GBP
Retailer 2£4,841 GBP
Retailer 3£5,364 GBP
Retailer 5£5,571 GBP
Retailer 9£6,892 GBP
Retailer 6£7,539 GBP
NZ Jewellers£8,582 GBP

42 data points across 12 retailers

15 retailers£3,908 GBP to £8,582 GBP

B+
Cheapest Retailer
-
£3,908 GBP
B
Retailer 2
-
£4,054 GBP
View
B
Retailer 3
-
£4,327 GBP
View
B
Retailer 4
-
£4,581 GBP
View
Retailer 5
-
£4,649 GBP
View
Price last confirmed 60 days ago
Retailer 6
-
£4,649 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£4,649 GBP
View
B
Retailer 8
-
£4,649 GBP
View
B
Retailer 9
-
£4,841 GBP
View
Retailer 10
-
£5,364 GBP
View
Price last confirmed 60 days ago
B
Retailer 11
-
£5,364 GBP
View
B
Retailer 12
-
£5,571 GBP
View
Retailer 13
-
£5,656 GBP
View
Price last confirmed 14 days ago
B
Retailer 14
-
£7,539 GBP
View
Most Expensive
B
NZ Jewellers
5e4adebc-b24e-4579-b715-f7e620d24c43 · Nov 5
£8,582 GBP
$11,551 USD
View
14 more retailers have this diamond
Prices start from £3,908 GBPSave up to £4,674 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
£3,908 GBP