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Radiant|Lab Grown|IGI

1.28ct D VS2 Radiant Lab Grown Diamond

ID • D/VS2 • IGI LG638468183

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG638468183

Diamond specifications and retailer prices

From $358 AUD
As of November 4, 2026
Save $1,416 AUD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,774 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG638468183 or 638468183. Listed at 17 retailers as of November 2, 2026, with prices from $358 to $1,774, a $1,416 spread on the same certified stone. MOH London lists it at $1,774. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638468183
Dimensions7.74 × 5.32 × 3.70 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.74 mm5.32 mm1.28 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638468183
Side View
Table 64.0%Crown 39.7°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 69.5%

Caratlytics Score

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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: $1,774 AUD|Low: $342 AUD|High: $1,796 AUD|Avg: $862 AUD|-1.1%
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
Retailer 16
November 4, 2026
Retailer 13$358 AUD
Retailer 5$401 AUD
Retailer 3$415 AUD
Retailer 4$443 AUD
Retailer 14$443 AUD
Retailer 2$527 AUD
Retailer 11$670 AUD
Retailer 6$731 AUD
Retailer 16$740 AUD
Retailer 8$805 AUD
Retailer 9$834 AUD
Retailer 10$1,012 AUD
Retailer 12$1,360 AUD
Retailer 15$1,424 AUD
Retailer 7$1,715 AUD
MOH London$1,774 AUD

43 data points across 16 retailers

17 retailers$358 AUD to $1,774 AUD

A
Cheapest Retailer
-
$358 AUD
A
Retailer 2
-
$401 AUD
View
Final sale: no returns
A
Retailer 3
-
$415 AUD
View
Retailer 4
-
$443 AUD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$443 AUD
View
A
Retailer 6
-
$527 AUD
View
A
Retailer 7
-
$670 AUD
View
B+
Retailer 8
-
$731 AUD
View
B+
Retailer 9
-
$740 AUD
View
B+
Retailer 10
-
$805 AUD
View
B+
Retailer 11
-
$834 AUD
View
B+
Retailer 12
-
$1,012 AUD
View
B
Retailer 13
-
$1,360 AUD
View
B
Retailer 14
-
$1,424 AUD
View
Retailer 15
-
$1,497 AUD
View
Price last confirmed 17 days ago
B
Retailer 16
-
$1,715 AUD
View
Most Expensive
B
MOH London
LG638468183 · Nov 2
$1,774 AUD
£980 GBP
View
16 more retailers have this diamond
Prices start from $358 AUDSave up to $1,416 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 Radiant
$358 AUD