Round|Natural|GIA

1.53ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6551018412

Certificate GIA 6551018412

Diamond specifications and retailer prices

From £4,116 GBP
As of November 5, 2026
Save £134 GBP (3%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,298 GBP at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551018412. Listed at 15 retailers as of November 6, 2026, with a relatively tight 3% 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

1.53
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6551018412
Dimensions7.43 × 7.47 × 4.48 mm
L/W Ratio1.01
Top View
7.43 mm7.47 mm1.53 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551018412
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.2%

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: £4,250 GBP|Low: £2,710 GBP|High: £6,159 GBP|Avg: £3,769 GBP|+4.6%
Retailer 1
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
Retailer 16
October 26, 2026
Retailer 11£2,710 GBP
Retailer 14£2,904 GBP
Retailer 12£2,976 GBP
Retailer 5£2,998 GBP
Retailer 13£3,047 GBP
Retailer 6£3,111 GBP
Retailer 16£3,593 GBP
Retailer 4£3,796 GBP
Retailer 15£3,875 GBP
Retailer 9£4,116 GBP
Retailer 10£4,116 GBP
Retailer 8£4,156 GBP
Retailer 1£4,250 GBP
Retailer 7£4,381 GBP
Retailer 3£4,573 GBP
Retailer 2£6,061 GBP

28 data points across 16 retailers

15 retailers£4,116 GBP to £4,250 GBP

Retailer 1
-
£2,710 GBP
Price last confirmed 20 days ago
Retailer 2
-
£2,904 GBP
View
Price last confirmed 21 days ago
Retailer 3
-
£3,300 GBP
View
Price last confirmed 21 days ago
Retailer 4
-
£3,300 GBP
View
Price last confirmed 22 days ago
Retailer 5
-
£3,412 GBP
View
Price last confirmed 29 days ago
Retailer 6
-
£3,593 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£3,796 GBP
View
Price last confirmed 28 days ago
Retailer 8
-
£3,809 GBP
View
Price last confirmed 21 days ago
B
Retailer 9
-
£4,116 GBP
View
B
Retailer 10
-
£4,116 GBP
View
Retailer 11
-
£4,156 GBP
View
Price last confirmed 22 days ago
B
Retailer 12
-
£4,250 GBP
View
Retailer 13
-
£4,573 GBP
View
Price last confirmed 25 days ago
Retailer 14
-
£6,061 GBP
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
74082c1a-5d6b-47c9-bf25-1313c9b79ed9 · Sep 26
£6,298 GBP
$8,477 USD
View
Price last confirmed 40 days ago
14 more retailers have this diamond
Prices start from £4,116 GBPSave up to £134 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
1.53ct Round
£4,116 GBP