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1.53ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 3495696298

Shape and cutting style on the report: Round brilliant

Certificate GIA 3495696298

Diamond specifications and retailer prices

From £3,318 GBP
As of November 6, 2026
Save £4,033 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £7,351 GBP at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3495696298. Listed at 17 retailers as of November 5, 2026, with prices from £3,318 to £7,351, a £4,033 spread on the same certified stone. NZ Jewellers lists it at £7,351. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 3495696298
Dimensions7.35 × 7.32 × 4.59 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
7.35 mm7.32 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3495696298
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°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 6
Current: £5,363 GBP|Low: £3,318 GBP|High: £6,553 GBP|Avg: £4,397 GBP|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2£3,318 GBP
Retailer 9£3,473 GBP
Retailer 5£3,488 GBP
Retailer 8£3,706 GBP
Retailer 7£3,734 GBP
Retailer 4£4,217 GBP
Retailer 3£4,660 GBP
Retailer 10£4,870 GBP
Retailer 1£5,363 GBP
Retailer 6£6,476 GBP

43 data points across 10 retailers

17 retailers£3,318 GBP to £7,351 GBP

B+
Cheapest Retailer
-
£3,318 GBP
B+
Retailer 2
-
£3,473 GBP
View
B+
Retailer 3
-
£3,488 GBP
View
B+
Retailer 4
-
£3,516 GBP
View
B+
Retailer 5
-
£3,706 GBP
View
B+
Retailer 6
-
£3,734 GBP
View
B
Retailer 7
-
£3,938 GBP
View
B
Retailer 8
-
£3,982 GBP
View
Retailer 9
-
£3,982 GBP
View
Price last confirmed 8 days ago
B
Retailer 10
-
£3,982 GBP
View
B+
Retailer 11
-
£4,217 GBP
View
B
Retailer 12
-
£4,595 GBP
View
B
Retailer 13
-
£4,660 GBP
View
Retailer 14
-
£4,848 GBP
View
Price last confirmed 14 days ago
B
Retailer 15
-
£5,363 GBP
View
B
Retailer 16
-
£6,476 GBP
View
Most Expensive
B
NZ Jewellers
015f0436-70d3-474b-ab0c-55fb26fa9a27 · Nov 5
£7,351 GBP
$9,894 USD
View
16 more retailers have this diamond
Prices start from £3,318 GBPSave up to £4,033 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
£3,318 GBP