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Round|Lab Grown|IGI

1.89ct F SI2 Round Lab Grown Diamond

VG • F/SI2 • IGI LG763668399

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763668399

Diamond specifications and retailer prices

From $330 AUD
$232 USD
As of November 1, 2026
Save $1,535 AUD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,865 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.89ct lab-grown round diamond

This 1.89ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG763668399 or 763668399. Listed at 14 retailers as of October 31, 2026, with prices from $330 to $1,865, a $1,535 spread on the same certified stone. Brilliant Earth lists it at $1,865. 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

1.89
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763668399
Dimensions7.79 × 7.74 × 4.99 mm
L/W Ratio1.01
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
7.79 mm7.74 mm1.89 ctF / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG763668399
Side View
Table 55.0%Crown 36.7°Girdle: MED-STKPavilion 41°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
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: $1,865 AUD|Low: $317 AUD|High: $2,150 AUD|Avg: $930 AUD|-13.2%
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
November 2, 2026
Retailer 11$330 AUD
Retailer 12$370 AUD
Retailer 5$410 AUD
Retailer 8$676 AUD
Retailer 3$695 AUD
Retailer 7$707 AUD
Retailer 2$765 AUD
Retailer 13$790 AUD
Retailer 10$1,063 AUD
Retailer 9$1,239 AUD
Retailer 6$1,642 AUD
Retailer 4$1,728 AUD
Brilliant Earth$1,865 AUD

36 data points across 13 retailers

14 retailers$330 AUD to $1,865 AUD

A
Cheapest Retailer
-
$330 AUD
$232 USD
A
Retailer 2
-
$370 AUD
$260 USD
View
Final sale: no returns
Retailer 3
-
$410 AUD
$288 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$676 AUD
€452 EUR
View
B+
Retailer 5
-
$695 AUD
$488 USD
View
A
Retailer 6
-
$707 AUD
£391 GBP
View
B+
Retailer 7
-
$765 AUD
£423 GBP
View
B+
Retailer 8
-
$790 AUD
$555 USD
View
B+
Retailer 9
-
$1,063 AUD
$747 USD
View
Retailer 10
-
$1,223 AUD
$859 USD
View
Price last confirmed 48 days ago
B
Retailer 11
-
$1,239 AUD
$870 USD
View
B
Retailer 12
-
$1,642 AUD
£908 GBP
View
B
Retailer 13
-
$1,728 AUD
$1,214 USD
View
Most Expensive
B
Brilliant Earth
19891666A · Oct 31
$1,865 AUD
$1,310 USD
View
13 more retailers have this diamond
Prices start from $330 AUDSave up to $1,535 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
1.89ct Round
$330 AUD