CaratHunter
Plans
Oval|Lab Grown|IGI

1.57ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG755516581

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG755516581

Diamond specifications and retailer prices

From $341 NZD
$192 USD
As of October 29, 2026
Save $1,647 NZD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,987 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.57ct lab-grown oval diamond

This 1.57ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG755516581 or 755516581. Listed at 11 retailers as of October 29, 2026, with prices from $341 to $1,987, a $1,647 spread on the same certified stone. MOH London lists it at $1,987. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG755516581
Dimensions9.39 × 6.57 × 4.11 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.39 mm6.57 mm1.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG755516581
Side View
Table 56.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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 29
Current: $1,987 NZD|Low: $341 NZD|High: $3,691 NZD|Avg: $1,203 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 9$341 NZD
Retailer 3$396 NZD
Retailer 10$422 NZD
Retailer 13$477 NZD
Retailer 2$543 NZD
Retailer 14$740 NZD
Retailer 8$771 NZD
Retailer 4$853 NZD
Retailer 12$855 NZD
Retailer 11$885 NZD
Retailer 15$1,359 NZD
Retailer 7$1,783 NZD
Retailer 5$1,960 NZD
MOH London$1,987 NZD
Retailer 6$3,691 NZD

4 data points across 15 retailers

11 retailers$341 NZD to $1,987 NZD

A
Cheapest Retailer
-
$341 NZD
$192 USD
A
Retailer 2
-
$396 NZD
$223 USD
View
A
Retailer 3
-
$422 NZD
$238 USD
View
A
Retailer 4
-
$477 NZD
HK$2,100 HKD
View
A
Retailer 5
-
$543 NZD
£241 GBP
View
B+
Retailer 6
-
$740 NZD
$417 USD
View
A
Retailer 7
-
$771 NZD
£342 GBP
View
A
Retailer 8
-
$855 NZD
$482 USD
View
A
Retailer 9
-
$885 NZD
$499 USD
View
B+
Retailer 10
-
$1,359 NZD
$766 USD
View
Most Expensive
B
MOH London
LG755516581 · Oct 29
$1,987 NZD
£882 GBP
View
10 more retailers have this diamond
Prices start from $341 NZDSave up to $1,647 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 Oval
$341 NZD