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1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • HRD 250000247389

Certificate HRD 250000247389

Diamond specifications and retailer prices

From £2,343 GBP
$3,140 USD
As of October 31, 2026
Save £2,080 GBP (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,423 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 250000247389. Listed at 8 retailers as of October 30, 2026, with prices from £2,343 to £4,423, a £2,080 spread on the same certified stone. NZ Jewellers lists it at £4,423. 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

1.55
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.7°
OriginNatural
Grading LabHRD
CertificateHRD 250000247389
Dimensions7.35 × 7.29 × 4.57 mm
L/W Ratio1.01
Star length50%
Culet sizePointed
Top View
7.35 mm7.29 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000247389
Side View
Table 58.0%Crown 36.2°GirdlePavilion 40.7°Culet: NoneDepth 62.4%

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 31
Current: £4,423 GBP|Low: £2,148 GBP|High: £4,423 GBP|Avg: £3,005 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 8£2,343 GBP
Retailer 9£2,515 GBP
Retailer 3£2,539 GBP
Retailer 6£2,539 GBP
Retailer 7£2,637 GBP
Retailer 5£2,930 GBP
Retailer 2£2,973 GBP
Retailer 4£4,269 GBP
NZ Jewellers£4,423 GBP

29 data points across 9 retailers

8 retailers£2,343 GBP to £4,423 GBP

A
Cheapest Retailer
-
£2,343 GBP
$3,140 USD
Final sale: no returns
A
Retailer 2
-
£2,539 GBP
$3,402 USD
View
A
Retailer 3
-
£2,539 GBP
$3,402 USD
View
A
Retailer 4
-
£2,637 GBP
$3,533 USD
View
A
Retailer 5
-
£2,930 GBP
$3,926 USD
View
A
Retailer 6
-
£2,973 GBP
€3,794 EUR
View
B+
Retailer 7
-
£4,269 GBP
View
Most Expensive
B+
NZ Jewellers
ef792729-a189-45f5-bde7-0181b8270528 · Oct 30
£4,423 GBP
$5,927 USD
View
7 more retailers have this diamond
Prices start from £2,343 GBPSave up to £2,080 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
1.55ct Round
£2,343 GBP