CaratHunter
Plans
Oval|Lab Grown|IGI

1.09ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG770640922

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG770640922

Diamond specifications and retailer prices

From $259 AUD
As of November 5, 2026
Save $1,374 AUD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,633 AUD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.09ct lab-grown oval diamond

This 1.09ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770640922 or 770640922. Listed at 20 retailers as of November 5, 2026, with prices from $259 to $1,633, a $1,374 spread on the same certified stone. Reve Diamonds lists it at $1,633. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770640922
Dimensions8.51 × 5.85 × 3.52 mm
L/W Ratio1.45
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
8.51 mm5.85 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770640922
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $568 AUD|Low: $256 AUD|High: $1,633 AUD|Avg: $697 AUD|+3.2%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 7$259 AUD
Retailer 5$290 AUD
Retailer 15$300 AUD
Retailer 4$320 AUD
Retailer 9$320 AUD
Retailer 17$493 AUD
Retailer 1$568 AUD
Retailer 3$569 AUD
Retailer 14$614 AUD
Retailer 2$674 AUD
Retailer 16$691 AUD
Retailer 13$726 AUD
Retailer 10$859 AUD
Retailer 6$1,030 AUD
Retailer 12$1,089 AUD
Retailer 8$1,109 AUD
Retailer 11$1,495 AUD
Reve Diamonds$1,633 AUD

46 data points across 18 retailers

20 retailers$259 AUD to $1,633 AUD

A
Cheapest Retailer
-
$259 AUD
A
Retailer 2
-
$290 AUD
View
Final sale: no returns
A
Retailer 3
-
$300 AUD
View
Retailer 4
-
$314 AUD
View
Price last confirmed 45 days ago
Retailer 5
-
$320 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$320 AUD
View
A
Retailer 7
-
$493 AUD
View
A
Retailer 8
-
$568 AUD
View
A
Retailer 9
-
$569 AUD
View
B+
Retailer 10
-
$614 AUD
View
B+
Retailer 11
-
$674 AUD
View
B+
Retailer 12
-
$691 AUD
View
B+
Retailer 13
-
$726 AUD
View
B+
Retailer 14
-
$859 AUD
View
B+
Retailer 15
-
$860 AUD
View
B
Retailer 16
-
$1,030 AUD
View
B
Retailer 17
-
$1,089 AUD
View
B
Retailer 18
-
$1,109 AUD
View
B
Retailer 19
-
$1,495 AUD
View
Most Expensive
B
Reve Diamonds
050915544 · Nov 6
$1,633 AUD
$1,122 USD
View
19 more retailers have this diamond
Prices start from $259 AUDSave up to $1,374 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
1.09ct Oval
$259 AUD