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Oval|Lab Grown|IGI

1.57ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG436074582

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436074582

Diamond specifications and retailer prices

From $1,526 NZD
$860 USD
As of October 31, 2026
Save $7,483 NZD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,009 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436074582 or 436074582. Listed at 12 retailers as of October 29, 2026, with prices from $1,526 to $9,009, a $7,483 spread on the same certified stone. MOH London lists it at $9,009. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.1°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074582
Dimensions9.09 × 6.73 × 4.13 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.09 mm6.73 mm1.57 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436074582
Side View
Table 58.5%Crown 32.1°Girdle: MED-THKPavilion 41.6°Culet: NoneDepth 61.4%

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: $9,009 NZD|Low: $1,526 NZD|High: $9,081 NZD|Avg: $4,106 NZD|+0.6%
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
November 2, 2026
Retailer 8$1,526 NZD
Retailer 7$2,404 NZD
Retailer 12$2,615 NZD
Retailer 13$2,690 NZD
Retailer 9$2,789 NZD
Retailer 14$2,789 NZD
Retailer 3$3,096 NZD
Retailer 5$3,827 NZD
Retailer 2$3,982 NZD
Retailer 10$4,407 NZD
Retailer 4$5,199 NZD
Retailer 11$5,227 NZD
Retailer 6$7,986 NZD
MOH London$9,009 NZD

39 data points across 14 retailers

12 retailers$1,526 NZD to $9,009 NZD

A
Cheapest Retailer
-
$1,526 NZD
$860 USD
B+
Retailer 2
-
$2,404 NZD
$1,355 USD
View
B+
Retailer 3
-
$2,615 NZD
$1,474 USD
View
B+
Retailer 4
-
$2,690 NZD
$1,516 USD
View
Final sale: no returns
Retailer 5
-
$2,789 NZD
$1,572 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$2,789 NZD
$1,572 USD
View
B+
Retailer 7
-
$3,096 NZD
$1,745 USD
View
B
Retailer 8
-
$3,982 NZD
£1,767 GBP
View
B
Retailer 9
-
$4,407 NZD
$2,484 USD
View
B
Retailer 10
-
$5,199 NZD
$2,930 USD
View
B
Retailer 11
-
$5,227 NZD
$2,946 USD
View
Most Expensive
B
MOH London
LG436074582 · Oct 29
$9,009 NZD
£3,998 GBP
View
11 more retailers have this diamond
Prices start from $1,526 NZDSave up to $7,483 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
$1,526 NZD