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Oval|Lab Grown|IGI

1.55ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG818635537

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818635537

Diamond specifications and retailer prices

From $350 NZD
$197 USD
As of October 29, 2026
Save $1,688 NZD (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,037 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown oval diamond

This 1.55ct 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 LG818635537 or 818635537. Listed at 8 retailers as of October 29, 2026, with prices from $350 to $2,037, a $1,688 spread on the same certified stone. MOH London lists it at $2,037. 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

1.55
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818635537
Dimensions9.15 × 6.64 × 4.10 mm
L/W Ratio1.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.15 mm6.64 mm1.55 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818635537
Side View
Table 58.0%Crown 35.2°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 61.7%

Caratlytics Score

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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: Oct 29
Current: $2,037 NZD|Low: $335 NZD|High: $2,069 NZD|Avg: $1,080 NZD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5$350 NZD
Retailer 3$405 NZD
Retailer 2$556 NZD
Retailer 6$732 NZD
Retailer 8$1,026 NZD
Retailer 7$1,393 NZD
Retailer 4$1,398 NZD
Retailer 9$1,774 NZD
MOH London$2,037 NZD

27 data points across 9 retailers

8 retailers$350 NZD to $2,037 NZD

A
Cheapest Retailer
-
$350 NZD
$197 USD
A
Retailer 2
-
$405 NZD
$228 USD
View
A
Retailer 3
-
$556 NZD
£247 GBP
View
B+
Retailer 4
-
$1,026 NZD
$578 USD
View
B
Retailer 5
-
$1,393 NZD
$785 USD
View
B+
Retailer 6
-
$1,398 NZD
$788 USD
View
Retailer 7
-
$1,774 NZD
SGD 1,351 SGD
View
Price last confirmed 17 days ago
Most Expensive
B
MOH London
LG818635537 · Oct 29
$2,037 NZD
£904 GBP
View
7 more retailers have this diamond
Prices start from $350 NZDSave up to $1,688 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
1.55ct Oval
$350 NZD