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Round|Lab Grown|IGI

1.86ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG825659863

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825659863

Diamond specifications and retailer prices

From $433 AUD
$304 USD
As of October 29, 2026
Save $4,364 AUD (91%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,797 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.86ct lab-grown round diamond

This 1.86ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825659863 or 825659863. Listed at 20 retailers as of October 29, 2026, with prices from $433 to $4,797, a $4,364 spread on the same certified stone. Brilliant Earth lists it at $4,797. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659863
Dimensions7.81 × 7.84 × 4.88 mm
L/W Ratio1.00
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
7.81 mm7.84 mm1.86 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659863
Side View
Table 56.0%Crown 35.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

Caratlytics Score

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A+
Exceptional
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: Oct 29
Current: $4,797 AUD|Low: $485 AUD|High: $4,953 AUD|Avg: $1,730 AUD|-3.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 4$485 AUD
Retailer 11$812 AUD
Retailer 3$818 AUD
Retailer 7$878 AUD
Retailer 13$923 AUD
Retailer 10$927 AUD
Retailer 2$952 AUD
Retailer 12$1,253 AUD
Retailer 16$1,376 AUD
Retailer 6$1,794 AUD
Retailer 5$1,799 AUD
Retailer 8$1,821 AUD
Retailer 17$1,889 AUD
Retailer 14$2,157 AUD
Retailer 9$2,408 AUD
Retailer 15$3,672 AUD
Brilliant Earth$4,797 AUD

27 data points across 17 retailers

20 retailers$433 AUD to $4,797 AUD

A+
Cheapest Retailer
-
$433 AUD
$304 USD
A
Retailer 2
-
$485 AUD
$341 USD
View
Final sale: no returns
A
Retailer 3
-
$538 AUD
$378 USD
View
A
Retailer 4
-
$812 AUD
£449 GBP
View
A
Retailer 5
-
$818 AUD
$575 USD
View
A
Retailer 6
-
$878 AUD
$617 USD
View
A
Retailer 7
-
$923 AUD
ZAR 10,479 ZAR
View
A
Retailer 8
-
$927 AUD
€620 EUR
View
A
Retailer 9
-
$952 AUD
£527 GBP
View
A
Retailer 10
-
$1,253 AUD
View
A
Retailer 11
-
$1,376 AUD
$967 USD
View
A
Retailer 12
-
$1,794 AUD
$1,261 USD
View
A
Retailer 13
-
$1,799 AUD
$1,264 USD
View
A
Retailer 14
-
$1,821 AUD
SGD 1,729 SGD
View
A
Retailer 15
-
$1,889 AUD
$1,327 USD
View
B+
Retailer 16
-
$2,157 AUD
£1,193 GBP
View
B+
Retailer 17
-
$2,408 AUD
$1,692 USD
View
B+
Retailer 18
-
$3,672 AUD
$2,580 USD
View
B
Retailer 19
-
$3,816 AUD
$2,681 USD
View
Most Expensive
B
Brilliant Earth
21603048A · Oct 29
$4,797 AUD
$3,370 USD
View
19 more retailers have this diamond
Prices start from $433 AUDSave up to $4,364 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 Round
$433 AUD