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Round|Lab Grown|IGI

1.28ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG770644956

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770644956

Diamond specifications and retailer prices

From $302 AUD
As of November 3, 2026
Save $1,193 AUD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,495 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG770644956 or 770644956. Listed at 18 retailers as of November 3, 2026, with prices from $302 to $1,495, a $1,193 spread on the same certified stone. MOH London lists it at $1,495. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770644956
Dimensions7.00 × 7.04 × 4.30 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.00 mm7.04 mm1.28 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770644956
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 41°Culet: NoneDepth 61.3%

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 3
Current: $1,495 AUD|Low: $289 AUD|High: $1,517 AUD|Avg: $807 AUD|-0.2%
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
November 5, 2026
Retailer 10$302 AUD
Retailer 12$373 AUD
Retailer 13$643 AUD
Retailer 9$644 AUD
Retailer 5$649 AUD
Retailer 8$683 AUD
Retailer 3$724 AUD
Retailer 2$741 AUD
Retailer 11$912 AUD
Retailer 7$914 AUD
Retailer 6$1,206 AUD
Retailer 4$1,359 AUD
MOH London$1,495 AUD

30 data points across 13 retailers

18 retailers$302 AUD to $1,495 AUD

A
Cheapest Retailer
-
$302 AUD
A
Retailer 2
-
$349 AUD
View
Retailer 3
-
$373 AUD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$373 AUD
View
A
Retailer 5
-
$643 AUD
View
A
Retailer 6
-
$644 AUD
View
A
Retailer 7
-
$649 AUD
View
A
Retailer 8
-
$683 AUD
View
A
Retailer 9
-
$724 AUD
View
A
Retailer 10
-
$741 AUD
View
B+
Retailer 11
-
$912 AUD
View
A
Retailer 12
-
$914 AUD
View
B+
Retailer 13
-
$979 AUD
View
B+
Retailer 14
-
$1,202 AUD
View
B+
Retailer 15
-
$1,206 AUD
View
B
Retailer 16
-
$1,277 AUD
View
B+
Retailer 17
-
$1,386 AUD
View
Most Expensive
B+
MOH London
LG770644956 · Nov 5
$1,495 AUD
£826 GBP
View
17 more retailers have this diamond
Prices start from $302 AUDSave up to $1,193 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 Round
$302 AUD