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Oval|Lab Grown|IGI

1.77ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG440012252

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG440012252

Diamond specifications and retailer prices

From £661 GBP
$880 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: £661 GBP 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012252 or 440012252. 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
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012252
Dimensions9.25 × 6.88 × 4.31 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.25 mm6.88 mm1.77 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012252
Side View
Table 61.0%Crown 35.9°Girdle: STK-THKPavilion 41.2°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £661 GBP|Low: £661 GBP|High: £2,805 GBP|Avg: £1,953 GBP|-54.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
August 13, 2026
Brilliant Earth£661 GBP
Retailer 2£863 GBP
Retailer 5£1,712 GBP
Retailer 3£1,766 GBP
Retailer 4£2,274 GBP
Retailer 6£2,805 GBP

20 data points across 6 retailers

1 retailer

B+
Brilliant Earth
19770361A · Oct 29
£661 GBP
$880 USD
View

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B+
1.77ct Oval
£661 GBP