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Marquise|Lab Grown|IGI

1.88ct F IF Marquise Lab Grown Diamond

VG • F/IF • IGI LG645408267

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG645408267

Diamond specifications and retailer prices

From $7,363 AUD
$5,160 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $7,363 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 1.88ct lab-grown marquise diamond

This 1.88ct 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 very-good cut grade and certified by IGI LG645408267 or 645408267. 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.88
Carat
F
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.2°
Pavilion angle42.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645408267
Dimensions12.36 × 6.28 × 4.22 mm
L/W Ratio1.97
Girdle conditionFaceted
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
12.36 mm6.28 mm1.88 ctF / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG645408267
Side View
Table 62.0%Crown 38.2°Girdle: MED-STKPavilion 42.7°Culet: NoneDepth 67.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $7,363 AUD|Low: $1,174 AUD|High: $7,363 AUD|Avg: $3,984 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
March 27, 2026
Retailer 3$1,530 AUD
Retailer 6$1,992 AUD
Retailer 2$2,320 AUD
Retailer 8$3,088 AUD
Retailer 4$3,334 AUD
Retailer 5$3,798 AUD
Retailer 7$3,944 AUD
Retailer 9$4,129 AUD
Brilliant Earth$7,363 AUD

46 data points across 9 retailers

1 retailer

B
Brilliant Earth
11079593A · Nov 2
$7,363 AUD
$5,160 USD
View

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B
1.88ct Marquise
$7,363 AUD