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Oval|Lab Grown|IGI

1.86ct F IF Oval Lab Grown Diamond

EX • F/IF • IGI LG777620400

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG777620400

Diamond specifications and retailer prices

From $423 AUD
$297 USD
As of November 1, 2026
Save $4,047 AUD (91%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,470 AUD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.86ct lab-grown oval diamond

This 1.86ct lab-grown oval 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 LG777620400 or 777620400. Listed at 15 retailers as of November 1, 2026, with prices from $423 to $4,470, a $4,047 spread on the same certified stone. Brilliant Earth lists it at $4,470. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG777620400
Dimensions9.88 × 6.93 × 4.26 mm
L/W Ratio1.43
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
9.88 mm6.93 mm1.86 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG777620400
Side View
Table 61.0%Crown 33.6°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,470 AUD|Low: $423 AUD|High: $4,883 AUD|Avg: $1,576 AUD|-7.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 11$423 AUD
Retailer 4$527 AUD
Retailer 5$819 AUD
Retailer 9$860 AUD
Retailer 7$914 AUD
Retailer 12$999 AUD
Retailer 8$1,221 AUD
Retailer 6$1,612 AUD
Retailer 10$1,687 AUD
Retailer 2$2,103 AUD
Retailer 3$3,773 AUD
Brilliant Earth$4,470 AUD

35 data points across 12 retailers

15 retailers$423 AUD to $4,470 AUD

A
Cheapest Retailer
-
$423 AUD
$297 USD
Retailer 2
-
$470 AUD
$330 USD
View
Price last confirmed 39 days ago
A
Retailer 3
-
$527 AUD
$370 USD
View
Final sale: no returns
Retailer 4
-
$545 AUD
$383 USD
View
Price last confirmed 37 days ago
A
Retailer 5
-
$819 AUD
$575 USD
View
A
Retailer 6
-
$860 AUD
$604 USD
View
A
Retailer 7
-
$914 AUD
$642 USD
View
Retailer 8
-
$999 AUD
€668 EUR
View
Price last confirmed 9 days ago
A
Retailer 9
-
$1,221 AUD
View
B+
Retailer 10
-
$1,612 AUD
$1,132 USD
View
A
Retailer 11
-
$1,687 AUD
$1,185 USD
View
Retailer 12
-
$1,872 AUD
$1,315 USD
View
Price last confirmed 36 days ago
B+
Retailer 13
-
$2,103 AUD
£1,163 GBP
View
B
Retailer 14
-
$3,773 AUD
$2,650 USD
View
Most Expensive
B
Brilliant Earth
18034378A · Nov 1
$4,470 AUD
$3,140 USD
View
14 more retailers have this diamond
Prices start from $423 AUDSave up to $4,047 AUD

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.

A
1.86ct Oval
$423 AUD