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Oval|Lab Grown|IGI

1.57ct G SI1 Oval Lab Grown Diamond

EX • G/SI1 • IGI LG770660503

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG770660503

Diamond specifications and retailer prices

From $1,140 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $1,140 USD 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 1.57ct lab-grown oval diamond

This 1.57ct lab-grown oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770660503 or 770660503. Listed at a single retailer as of October 31, 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

1.57
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770660503
Dimensions9.15 × 6.53 × 4.12 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Top View
9.15 mm6.53 mm1.57 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770660503
Side View
Table 61.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $1,140 USD|Low: $227 USD|High: $1,140 USD|Avg: $445 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
April 14, 2026
Retailer 3$228 USD
Retailer 4$370 USD
Retailer 2$444 USD
Retailer 5$636 USD
Brilliant Earth$1,140 USD

18 data points across 5 retailers

1 retailer

B
Brilliant Earth
17570915A · Oct 31
$1,140 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
1.57ct Oval
$1,140 USD