Round|Lab Grown|UNKNOWN

1.33ct J I1 Round Lab Grown Diamond

EX • J/I1 • UNKNOWN 25164164

Certificate UNKNOWN 25164164

Diamond specifications and retailer prices

From £1,193 GBP

$1,598 USD

As of October 31, 2026

5 retailers carry this diamond

Most expensive: £1,193 GBP at NZ Jewellers

View at NZ Jewellers

About this 1.33ct lab-grown round diamond

This 1.33ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by UNKNOWN 25164164. Listed at 5 retailers as of October 31, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33

Carat

Colour

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

OriginLab Grown

Grading LabUNKNOWN

CertificateUNKNOWN 25164164

Dimensions7.15 × 7.11 × 4.33 mm

L/W Ratio1.01

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateUNKNOWN 25164164

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31

Current: £366 GBP|Low: £351 GBP|High: £706 GBP|Avg: £518 GBP|+4.3%

Retailer 1

Retailer 2

Retailer 3

October 10, 2026

Retailer 1£366 GBP

Retailer 2£454 GBP

Retailer 3£706 GBP

4 data points across 3 retailers

5 retailers

Retailer 1

£366 GBP

$490 USD

Price under review

Retailer 2

£410 GBP

$549 USD

View

Price under review

Retailer 3

£454 GBP

$608 USD

View

Price under review

Retailer 4

£706 GBP

$946 USD

View

Price under review

Most Expensive

B+

NZ Jewellers

9c2c667f-3503-4ebf-ac1e-f442fddcedd9 · Oct 31

£1,193 GBP

$1,598 USD

View

4 more retailers have this diamond

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.

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B+

1.33ct Round

£1,193 GBP