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Oval|Lab Grown|IGI

1.77ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG644486704

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG644486704

Diamond specifications and retailer prices

From $2,546 NZD
$1,430 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $2,546 NZD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.77ct lab-grown oval diamond

This 1.77ct 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 LG644486704 or 644486704. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.77
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644486704
Dimensions10.17 × 6.84 × 4.11 mm
L/W Ratio1.49
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.17 mm6.84 mm1.77 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644486704
Side View
Table 62.0%Crown 34.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $2,546 NZD|Low: $1,140 NZD|High: $4,469 NZD|Avg: $2,102 NZD|-43.0%
Brilliant Earth
Retailer 2
Retailer 3
May 22, 2026
Retailer 2$1,140 NZD
Retailer 3$1,673 NZD
Brilliant Earth$2,546 NZD

22 data points across 3 retailers

1 retailer

B
Brilliant Earth
13676028B · Oct 29
$2,546 NZD
$1,430 USD
View

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.

B
1.77ct Oval
$2,546 NZD