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Marquise|Lab Grown|IGI

1.77ct F IF Marquise Lab Grown Diamond

ID • F/IF • IGI LG523270722

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG523270722

Diamond specifications and retailer prices

From $6,164 AUD
$4,320 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $6,164 AUD 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 marquise diamond

This 1.77ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG523270722 or 523270722. 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. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523270722
Dimensions13.08 × 6.11 mm
L/W Ratio2.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
13.08 mm6.11 mm1.77 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523270722
Side View
Table 58.5%Crown 34.8°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $6,164 AUD|Low: $2,499 AUD|High: $13,741 AUD|Avg: $6,068 AUD|-7.9%
Brilliant Earth
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June 18, 2026
Retailer 14$2,499 AUD
Retailer 13$2,675 AUD
Retailer 3$3,215 AUD
Retailer 2$3,808 AUD
Retailer 10$3,940 AUD
Retailer 11$4,202 AUD
Retailer 12$5,140 AUD
Retailer 8$6,056 AUD
Brilliant Earth$6,164 AUD
Retailer 9$6,176 AUD
Retailer 6$6,325 AUD
Retailer 16$6,678 AUD
Retailer 7$7,281 AUD
Retailer 15$9,025 AUD
Retailer 4$11,196 AUD
Retailer 5$13,741 AUD

41 data points across 16 retailers

1 retailer

B
Brilliant Earth
6784757Y · Nov 2
$6,164 AUD
$4,320 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 Marquise
$6,164 AUD