CaratHunter
Plans
Round|Natural|GIA

1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7551327856

Certificate GIA 7551327856

Diamond specifications and retailer prices

From £3,937 GBP
$5,275 USD
As of October 26, 2026
Save £1,643 GBP (29%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £8,578 GBP at NZ Jewellers · As of October 20, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551327856. Listed at 9 retailers as of October 25, 2026, with a 42% 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

1.54
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7551327856
Dimensions7.33 × 7.27 × 4.58 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
7.33 mm7.27 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551327856
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.8%

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: Oct 26
Current: £8,578 GBP|Low: £3,688 GBP|High: £8,849 GBP|Avg: £5,499 GBP|-3.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 26, 2026
Retailer 12£3,937 GBP
Retailer 8£4,425 GBP
Retailer 7£4,647 GBP
Retailer 11£4,647 GBP
Retailer 10£4,650 GBP
Retailer 3£4,794 GBP
Retailer 2£5,282 GBP
Retailer 9£5,362 GBP
Retailer 5£5,580 GBP
Retailer 4£5,859 GBP
Retailer 6£7,567 GBP
NZ Jewellers£8,578 GBP

39 data points across 12 retailers

9 retailers£3,937 GBP to £5,580 GBP

A
Cheapest Retailer
-
£3,937 GBP
$5,275 USD
Retailer 2
-
£4,647 GBP
$6,226 USD
View
Price last confirmed 10 days ago
Retailer 3
-
£4,647 GBP
$6,226 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
£4,650 GBP
$6,230 USD
View
B+
Retailer 5
-
£5,282 GBP
View
Retailer 6
-
£5,362 GBP
$7,184 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£5,580 GBP
€7,121 EUR
View
Retailer 8
-
£7,567 GBP
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
52fd0370-023f-4d40-a416-d453c9749b6d · Oct 20
£8,578 GBP
$11,494 USD
View
Price last confirmed 11 days ago
8 more retailers have this diamond
Prices start from £3,937 GBPSave up to £1,643 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
£3,937 GBP