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Round|Natural|GIA

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7546133863

Certificate GIA 7546133863

Diamond specifications and retailer prices

From £3,990 GBP
As of November 1, 2026
Save £4,775 GBP (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £8,764 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7546133863. Listed at 21 retailers as of November 1, 2026, with prices from £3,990 to £8,764, a £4,775 spread on the same certified stone. NZ Jewellers lists it at £8,764. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7546133863
Dimensions7.47 × 7.43 × 4.49 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Needle
Top View
7.47 mm7.43 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546133863
Side View
Table 59.0%Crown 32°Girdle: MediumPavilion 41°Culet: NoneDepth 60.2%

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 1
Current: £8,764 GBP|Low: £3,990 GBP|High: £8,764 GBP|Avg: £5,373 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 4£3,990 GBP
Retailer 7£4,140 GBP
Retailer 6£4,381 GBP
Retailer 8£4,415 GBP
Retailer 13£4,747 GBP
Retailer 14£4,747 GBP
Retailer 15£4,747 GBP
Retailer 9£4,943 GBP
Retailer 5£5,024 GBP
Retailer 3£5,086 GBP
Retailer 2£5,361 GBP
Retailer 16£5,478 GBP
Retailer 11£5,681 GBP
Retailer 10£6,394 GBP
Retailer 12£7,700 GBP
NZ Jewellers£8,764 GBP

32 data points across 16 retailers

21 retailers£3,990 GBP to £8,764 GBP

A
Cheapest Retailer
-
£3,990 GBP
A
Retailer 2
-
£4,140 GBP
View
A
Retailer 3
-
£4,227 GBP
View
B+
Retailer 4
-
£4,381 GBP
View
Final sale: no returns
B+
Retailer 5
-
£4,415 GBP
View
B+
Retailer 6
-
£4,676 GBP
View
Retailer 7
-
£4,747 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£4,747 GBP
View
B+
Retailer 9
-
£4,747 GBP
View
B+
Retailer 10
-
£4,943 GBP
View
B+
Retailer 11
-
£5,024 GBP
View
Retailer 12
-
£5,024 GBP
View
Price last confirmed 28 days ago
Retailer 13
-
£5,086 GBP
View
Price last confirmed 15 days ago
B+
Retailer 14
-
£5,361 GBP
View
B+
Retailer 15
-
£5,361 GBP
View
B+
Retailer 16
-
£5,478 GBP
View
B+
Retailer 17
-
£5,681 GBP
View
Retailer 18
-
£5,775 GBP
View
Price last confirmed 22 days ago
B
Retailer 19
-
£6,394 GBP
View
B
Retailer 20
-
£7,700 GBP
View
Most Expensive
B
NZ Jewellers
f4a04218-fbca-43b1-aa79-c7b39ec024e8 · Nov 5
£8,764 GBP
$11,731 USD
View
20 more retailers have this diamond
Prices start from £3,990 GBPSave up to £4,775 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
1.53ct Round
£3,990 GBP