Round|Natural|GIA

1.53ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5543776919

Certificate GIA 5543776919

Diamond specifications and retailer prices

From £3,173 GBP
As of November 5, 2026
Save £3,326 GBP (51%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,842 GBP at NZ Jewellers · As of September 19, 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 5543776919. Listed at 14 retailers as of November 4, 2026, with a 105% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5543776919
Dimensions7.32 × 7.34 × 4.59 mm
L/W Ratio1.00
Top View
7.32 mm7.34 mm1.53 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543776919
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 5
Current: £4,860 GBP|Low: £3,264 GBP|High: £6,595 GBP|Avg: £4,349 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£3,264 GBP
Retailer 7£3,706 GBP
Retailer 10£3,706 GBP
Retailer 8£3,923 GBP
Retailer 4£3,965 GBP
Retailer 2£4,190 GBP
Retailer 11£4,190 GBP
Retailer 3£4,332 GBP
Retailer 5£4,378 GBP
Retailer 1£4,860 GBP
Retailer 6£6,498 GBP

31 data points across 11 retailers

14 retailers£3,173 GBP to £6,498 GBP

B+
Cheapest Retailer
-
£3,173 GBP
B+
Retailer 2
-
£3,264 GBP
View
Retailer 3
-
£3,706 GBP
View
Price last confirmed 44 days ago
B+
Retailer 4
-
£3,706 GBP
View
B
Retailer 5
-
£3,923 GBP
View
B+
Retailer 6
-
£3,965 GBP
View
B+
Retailer 7
-
£4,190 GBP
View
B+
Retailer 8
-
£4,190 GBP
View
Retailer 9
-
£4,277 GBP
View
Price last confirmed 45 days ago
B
Retailer 10
-
£4,332 GBP
View
B+
Retailer 11
-
£4,378 GBP
View
B
Retailer 12
-
£4,860 GBP
View
B
Retailer 13
-
£6,498 GBP
View
Most Expensive
NZ Jewellers
fa903c22-b369-4386-a522-84a47ebd022c · Sep 19
£6,842 GBP
$9,209 USD
View
Price last confirmed 47 days ago
13 more retailers have this diamond
Prices start from £3,173 GBPSave up to £3,326 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
£3,173 GBP