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1.57ct F I1 Round Natural Diamond

EX • F/I1 • IGI 520278910

Shape and cutting style on the report: Round brilliant

Certificate IGI 520278910

Diamond specifications and retailer prices

From $5,546 NZD
$3,120 USD
As of October 31, 2026
Save $816 NZD (13%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $6,362 NZD at Yorxs · As of November 1, 2026
View at Yorxs

About this 1.57ct natural round diamond

This 1.57ct natural round sits in the one-and-a-half to two carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 520278910. Listed at 2 retailers as of October 31, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
F
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 520278910
Dimensions7.35 × 7.30 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.35 mm7.30 mm1.57 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 520278910
Side View
Table 56.0%Crown 36.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $5,546 NZD|Low: $5,546 NZD|High: $6,901 NZD|Avg: $6,282 NZD
Retailer 1
Retailer 2
Yorxs
November 1, 2026
Retailer 1$5,546 NZD
Yorxs$6,362 NZD
Retailer 2$6,901 NZD

20 data points across 3 retailers

2 retailers$5,546 NZD to $6,362 NZD

A
Cheapest Retailer
-
$5,546 NZD
$3,120 USD
Most Expensive
B+
Yorxs
570922876 · Nov 1
$6,362 NZD
€3,409 EUR
View
1 more retailer has this diamond
Prices start from $5,546 NZDSave up to $816 NZD

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
$5,546 NZD