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1.57ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG436046616

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436046616

Diamond specifications and retailer prices

From $1,544 NZD
$870 USD
As of October 31, 2026
Save $6,990 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,533 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.57ct lab-grown round diamond

This 1.57ct lab-grown 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 IGI LG436046616 or 436046616. Listed at 10 retailers as of October 29, 2026, with prices from $1,544 to $8,533, a $6,990 spread on the same certified stone. MOH London lists it at $8,533. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046616
Dimensions7.40 × 7.37 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.40 mm7.37 mm1.57 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046616
Side View
Table 56.0%Crown 36.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.1%

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: $8,533 NZD|Low: $1,544 NZD|High: $8,603 NZD|Avg: $3,873 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2$1,544 NZD
Retailer 5$2,278 NZD
Retailer 8$2,479 NZD
Retailer 10$2,548 NZD
Retailer 6$2,642 NZD
Retailer 3$3,076 NZD
Retailer 12$3,652 NZD
Retailer 7$4,182 NZD
Retailer 11$4,925 NZD
Retailer 9$4,952 NZD
Retailer 4$5,914 NZD
MOH London$8,533 NZD

17 data points across 12 retailers

10 retailers$1,544 NZD to $8,533 NZD

A
Cheapest Retailer
-
$1,544 NZD
$870 USD
B+
Retailer 2
-
$2,278 NZD
$1,284 USD
View
B+
Retailer 3
-
$2,479 NZD
$1,397 USD
View
B+
Retailer 4
-
$2,548 NZD
$1,436 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,642 NZD
$1,489 USD
View
Retailer 6
-
$2,642 NZD
$1,489 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$4,182 NZD
$2,357 USD
View
B
Retailer 8
-
$4,925 NZD
$2,776 USD
View
B
Retailer 9
-
$4,952 NZD
$2,791 USD
View
Most Expensive
B
MOH London
LG436046616 · Oct 29
$8,533 NZD
£3,787 GBP
View
9 more retailers have this diamond
Prices start from $1,544 NZDSave up to $6,990 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
$1,544 NZD