CaratHunter
Plans
Marquise|Lab Grown|IGI

0.77ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG677527159

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG677527159

Diamond specifications and retailer prices

From $430 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $430 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 0.77ct lab-grown marquise diamond

This 0.77ct lab-grown marquise sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG677527159 or 677527159. Listed at a single retailer as of November 2, 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

0.77
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677527159
Dimensions9.35 × 4.74 × 3.03 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.35 mm4.74 mm0.77 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677527159
Side View
Table 56.0%Crown 33.1°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $430 USD|Low: $430 USD|High: $430 USD|Avg: $430 USD
December 30, 2025
Brilliant Earth$430 USD

4 data points across 1 retailer

1 retailer

B
Brilliant Earth
12918944A · Nov 2
$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
0.77ct Marquise
$430 USD