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1.57ct L SI1 Round Natural Diamond

EX • L/SI1 • IGI 743512789

Shape and cutting style on the report: Round brilliant

Certificate IGI 743512789

Diamond specifications and retailer prices

From $1,166 USD
As of November 5, 2026
Save $2,343 USD (67%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,509 USD at NZ Jewellers · As of November 5, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 743512789. Listed at 11 retailers as of November 5, 2026, with prices from $1,166 to $3,509, a $2,343 spread on the same certified stone. NZ Jewellers lists it at $3,509. 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

1.57
Carat
L
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 743512789
Dimensions7.38 × 7.42 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.38 mm7.42 mm1.57 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 743512789
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,509 USD|Low: $1,166 USD|High: $3,509 USD|Avg: $1,694 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 4$1,166 USD
Retailer 7$1,333 USD
Retailer 3$1,438 USD
Retailer 10$1,438 USD
Retailer 8$1,505 USD
Retailer 6$1,535 USD
Retailer 2$1,566 USD
Retailer 9$1,574 USD
Retailer 11$1,660 USD
Retailer 5$1,755 USD
NZ Jewellers$3,509 USD

45 data points across 11 retailers

11 retailers$1,166 USD to $3,509 USD

A
Cheapest Retailer
-
$1,166 USD
A
Retailer 2
-
$1,333 USD
View
Retailer 3
-
$1,438 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,438 USD
View
A
Retailer 5
-
$1,505 USD
View
A
Retailer 6
-
$1,535 USD
View
A
Retailer 7
-
$1,566 USD
View
A
Retailer 8
-
$1,574 USD
View
A
Retailer 9
-
$1,660 USD
View
A
Retailer 10
-
$1,755 USD
View
Most Expensive
B
NZ Jewellers
7cdd6e91-03dd-427e-b4e9-bc40199fd98a · Nov 5
$3,509 USD
View
10 more retailers have this diamond
Prices start from $1,166 USDSave up to $2,343 USD

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
$1,166 USD