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Round|Lab Grown|IGI

1.89ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG778691335

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778691335

Diamond specifications and retailer prices

From $927 AUD
$651 USD
As of October 29, 2026
Save $6,518 AUD (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,444 AUD at Brilliant Earth · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG778691335 or 778691335. Listed at 23 retailers as of October 29, 2026, with prices from $927 to $7,444, a $6,518 spread on the same certified stone. Brilliant Earth lists it at $7,444. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778691335
Dimensions7.89 × 7.94 × 4.90 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
7.89 mm7.94 mm1.89 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778691335
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.0%

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: Oct 29
Current: $7,444 AUD|Low: $1,036 AUD|High: $7,444 AUD|Avg: $2,698 AUD
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
October 29, 2026
Retailer 6$1,036 AUD
Retailer 11$1,331 AUD
Retailer 4$1,443 AUD
Retailer 2$1,712 AUD
Retailer 8$1,750 AUD
Retailer 14$1,755 AUD
Retailer 9$1,975 AUD
Retailer 10$2,674 AUD
Retailer 12$2,746 AUD
Retailer 13$3,470 AUD
Retailer 3$3,626 AUD
Retailer 5$3,929 AUD
Retailer 7$4,552 AUD
Brilliant Earth$7,444 AUD

43 data points across 14 retailers

23 retailers$927 AUD to $7,444 AUD

A
Cheapest Retailer
-
$927 AUD
$651 USD
A
Retailer 2
-
$1,008 AUD
$708 USD
View
A
Retailer 3
-
$1,036 AUD
$728 USD
View
Final sale: no returns
A
Retailer 4
-
$1,075 AUD
$755 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$1,075 AUD
$755 USD
View
A
Retailer 6
-
$1,257 AUD
HK$6,900 HKD
View
A
Retailer 7
-
$1,331 AUD
$935 USD
View
A
Retailer 8
-
$1,443 AUD
$1,014 USD
View
A
Retailer 9
-
$1,712 AUD
£947 GBP
View
A
Retailer 10
-
$1,750 AUD
€1,171 EUR
View
A
Retailer 11
-
$1,755 AUD
$1,233 USD
View
B+
Retailer 12
-
$1,975 AUD
ZAR 22,413 ZAR
View
B+
Retailer 13
-
$2,020 AUD
$1,419 USD
View
B+
Retailer 14
-
$2,674 AUD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
$2,746 AUD
$1,929 USD
View
B+
Retailer 16
-
$3,022 AUD
$2,123 USD
View
B+
Retailer 17
-
$3,470 AUD
$2,438 USD
View
B
Retailer 18
-
$3,626 AUD
SGD 3,442 SGD
View
B
Retailer 19
-
$3,667 AUD
$2,576 USD
View
B
Retailer 20
-
$3,709 AUD
$2,605 USD
View
B
Retailer 21
-
$3,747 AUD
$2,633 USD
View
B
Retailer 22
-
$4,552 AUD
£2,518 GBP
View
Most Expensive
B
Brilliant Earth
19064225A · Oct 29
$7,444 AUD
$5,230 USD
View
22 more retailers have this diamond
Prices start from $927 AUDSave up to $6,518 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
$927 AUD