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Oval|Lab Grown|IGI

1.28ct F VS1 Oval Lab Grown Diamond

ID • F/VS1 • IGI LG720540403

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG720540403

Diamond specifications and retailer prices

From $326 AUD
As of November 4, 2026
Save $1,358 AUD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,684 AUD at MOH London · As of November 5, 2026
View at MOH London

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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720540403 or 720540403. Listed at 22 retailers as of November 4, 2026, with prices from $326 to $1,684, a $1,358 spread on the same certified stone. MOH London lists it at $1,684. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720540403
Dimensions8.81 × 6.12 × 3.81 mm
L/W Ratio1.44
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
8.81 mm6.12 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720540403
Side View
Table 62.0%Crown 35.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

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 4
Current: $1,684 AUD|Low: $280 AUD|High: $1,709 AUD|Avg: $693 AUD|-0.3%
MOH London
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
November 6, 2026
Retailer 12$291 AUD
Retailer 6$326 AUD
Retailer 4$337 AUD
Retailer 7$361 AUD
Retailer 15$361 AUD
Retailer 13$486 AUD
Retailer 9$620 AUD
Retailer 2$654 AUD
Retailer 11$657 AUD
Retailer 5$714 AUD
Retailer 10$883 AUD
Retailer 14$1,100 AUD
Retailer 3$1,161 AUD
Retailer 8$1,164 AUD
MOH London$1,684 AUD

42 data points across 15 retailers

22 retailers$326 AUD to $1,684 AUD

Retailer 1
-
$291 AUD
Price last confirmed 11 days ago
A
Retailer 2
-
$326 AUD
View
Final sale: no returns
Retailer 3
-
$337 AUD
View
Price last confirmed 10 days ago
Retailer 4
-
$361 AUD
View
Price last confirmed 12 days ago
Retailer 5
-
$361 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$401 AUD
View
B+
Retailer 7
-
$486 AUD
View
Retailer 8
-
$620 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$654 AUD
View
Retailer 10
-
$657 AUD
View
Price last confirmed 12 days ago
A
Retailer 11
-
$691 AUD
View
Retailer 12
-
$714 AUD
View
Price last confirmed 8 days ago
Retailer 13
-
$883 AUD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$943 AUD
View
Retailer 15
-
$1,077 AUD
View
Price last confirmed 331 days ago
Retailer 16
-
$1,100 AUD
View
Price last confirmed 8 days ago
Retailer 17
-
$1,161 AUD
View
Price last confirmed 9 days ago
B+
Retailer 18
-
$1,164 AUD
View
B+
Retailer 19
-
$1,170 AUD
View
B
Retailer 20
-
$1,229 AUD
View
B
Retailer 21
-
$1,237 AUD
View
Most Expensive
B
MOH London
LG720540403 · Nov 5
$1,684 AUD
£928 GBP
View
21 more retailers have this diamond
Prices start from $326 AUDSave up to $1,358 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
$326 AUD