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Round|Natural|GIA

1.54ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6435026100

Certificate GIA 6435026100

Diamond specifications and retailer prices

From £2,663 GBP
As of November 4, 2026
Save £3,650 GBP (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,312 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6435026100. Listed at 17 retailers as of November 4, 2026, with prices from £2,663 to £6,312, a £3,650 spread on the same certified stone. NZ Jewellers lists it at £6,312. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6435026100
Dimensions7.40 × 7.37 × 4.60 mm
L/W Ratio1.00
Top View
7.40 mm7.37 mm1.54 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435026100
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £6,312 GBP|Low: £2,527 GBP|High: £6,330 GBP|Avg: £3,816 GBP|-0.3%
NZ Jewellers
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
Retailer 15
November 5, 2026
Retailer 10£2,663 GBP
Retailer 14£2,888 GBP
Retailer 4£3,030 GBP
Retailer 3£3,083 GBP
Retailer 11£3,283 GBP
Retailer 12£3,283 GBP
Retailer 13£3,283 GBP
Retailer 2£3,544 GBP
Retailer 5£3,693 GBP
Retailer 7£3,693 GBP
Retailer 9£3,702 GBP
Retailer 6£3,787 GBP
Retailer 15£3,812 GBP
Retailer 8£5,754 GBP
NZ Jewellers£6,312 GBP

41 data points across 15 retailers

17 retailers£2,663 GBP to £6,312 GBP

A
Cheapest Retailer
-
£2,663 GBP
A
Retailer 2
-
£2,888 GBP
View
B+
Retailer 3
-
£3,030 GBP
View
Final sale: no returns
B+
Retailer 4
-
£3,083 GBP
View
B+
Retailer 5
-
£3,283 GBP
View
Retailer 6
-
£3,283 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£3,283 GBP
View
Retailer 8
-
£3,366 GBP
View
Price last confirmed 109 days ago
B+
Retailer 9
-
£3,544 GBP
View
B+
Retailer 10
-
£3,693 GBP
View
B+
Retailer 11
-
£3,693 GBP
View
B+
Retailer 12
-
£3,702 GBP
View
B+
Retailer 13
-
£3,787 GBP
View
B
Retailer 14
-
£3,812 GBP
View
Retailer 15
-
£4,012 GBP
View
Price last confirmed 14 days ago
B
Retailer 16
-
£5,754 GBP
View
Most Expensive
B
NZ Jewellers
84957cad-0ea8-4c10-a324-150d41ea0ade · Nov 5
£6,312 GBP
$8,496 USD
View
16 more retailers have this diamond
Prices start from £2,663 GBPSave up to £3,650 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.

A
1.54ct Round
£2,663 GBP