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Round|Natural|IGI

1.57ct J I1 Round Natural Diamond

EX • J/I1 • IGI 539243371

Shape and cutting style on the report: Round brilliant

Certificate IGI 539243371

Diamond specifications and retailer prices

From £1,338 GBP
$1,795 USD
As of November 1, 2026
Save £676 GBP (34%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,610 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.57ct natural round diamond

This 1.57ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 539243371. Listed at 8 retailers as of November 1, 2026, with a 51% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 539243371
Dimensions7.26 × 7.38 × 4.64 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
7.26 mm7.38 mm1.57 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 539243371
Side View
Table 56.5%Crown 36.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.2%

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: £2,013 GBP|Low: £935 GBP|High: £2,023 GBP|Avg: £1,532 GBP|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6£935 GBP
Retailer 4£1,338 GBP
Retailer 3£1,481 GBP
Retailer 2£1,555 GBP
Retailer 5£1,881 GBP
Retailer 1£2,013 GBP

16 data points across 6 retailers

8 retailers£1,338 GBP to £2,013 GBP

A
Cheapest Retailer
-
£1,338 GBP
$1,795 USD
Retailer 2
-
£1,481 GBP
$1,987 USD
View
Price last confirmed 21 days ago
Retailer 3
-
£1,481 GBP
$1,987 USD
View
Price last confirmed 25 days ago
Retailer 4
-
£1,549 GBP
$2,078 USD
View
Price last confirmed 34 days ago
B+
Retailer 5
-
£1,555 GBP
$2,087 USD
View
Retailer 6
-
£1,708 GBP
$2,292 USD
View
Price last confirmed 24 days ago
B+
Retailer 7
-
£2,013 GBP
€2,573 EUR
View
Most Expensive
NZ Jewellers
0e1be8c7-bca5-4655-b64c-36c5cadd5d2f · Sep 28
£3,610 GBP
$4,845 USD
View
Price last confirmed 35 days ago
7 more retailers have this diamond
Prices start from £1,338 GBPSave up to £676 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
1.57ct Round
£1,338 GBP