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Oval|Lab Grown|IGI

1.28ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG705550393

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG705550393

Diamond specifications and retailer prices

From $619 AUD
$435 USD
As of October 30, 2026
Save $1,160 AUD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,780 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.28ct lab-grown oval diamond

This 1.28ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG705550393 or 705550393. Listed at 8 retailers as of October 29, 2026, with prices from $619 to $1,780, a $1,160 spread on the same certified stone. Brilliant Earth lists it at $1,780. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG705550393
Dimensions9.06 × 6.11 × 3.68 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.06 mm6.11 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG705550393
Side View
Table 61.0%Crown 34.3°Girdle: THN-STKPavilion 40.5°Culet: NoneDepth 60.2%

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: Oct 30
Current: $635 AUD|Low: $604 AUD|High: $1,690 AUD|Avg: $918 AUD|-4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 7$619 AUD
Retailer 1$635 AUD
Retailer 2$656 AUD
Retailer 5$685 AUD
Retailer 4$876 AUD
Retailer 6$1,224 AUD
Retailer 3$1,680 AUD

19 data points across 7 retailers

8 retailers$619 AUD to $1,780 AUD

A
Cheapest Retailer
-
$619 AUD
$435 USD
A
Retailer 2
-
$635 AUD
€425 EUR
View
A
Retailer 3
-
$656 AUD
£363 GBP
View
A
Retailer 4
-
$685 AUD
$481 USD
View
B+
Retailer 5
-
$876 AUD
$615 USD
View
B
Retailer 6
-
$1,224 AUD
$860 USD
View
B
Retailer 7
-
$1,680 AUD
£929 GBP
View
Most Expensive
B
Brilliant Earth
21757189A · Oct 29
$1,780 AUD
$1,250 USD
View
7 more retailers have this diamond
Prices start from $619 AUDSave up to $1,160 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
1.28ct Oval
$619 AUD