Radiant|Lab Grown|IGI

1.28ct E VVS1 Radiant Lab Grown Diamond

EX • E/VVS1 • IGI LG651420471

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

Certificate IGI LG651420471

Diamond specifications and retailer prices

From $337 AUD
$237 USD
As of October 30, 2026
Save $1,698 AUD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,035 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG651420471 or 651420471. Listed at 19 retailers as of October 29, 2026, with prices from $337 to $2,035, a $1,698 spread on the same certified stone. Brilliant Earth lists it at $2,035. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651420471
Dimensions7.67 × 5.33 × 3.61 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.67 mm5.33 mm1.28 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651420471
Side View
Table 65.0%Crown 44.1°Girdle: MediumPavilion 34.4°Culet: NoneDepth 67.7%

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: Oct 30
Current: $2,035 AUD|Low: $337 AUD|High: $2,178 AUD|Avg: $942 AUD|-6.5%
Brilliant Earth
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
Retailer 18
Retailer 19
October 30, 2026
Retailer 3$337 AUD
Retailer 6$350 AUD
Retailer 7$369 AUD
Retailer 19$374 AUD
Retailer 18$460 AUD
Retailer 4$642 AUD
Retailer 13$642 AUD
Retailer 2$691 AUD
Retailer 17$692 AUD
Retailer 8$830 AUD
Retailer 9$877 AUD
Retailer 14$913 AUD
Retailer 15$1,206 AUD
Retailer 16$1,267 AUD
Retailer 11$1,277 AUD
Retailer 10$1,367 AUD
Retailer 12$1,506 AUD
Retailer 5$1,752 AUD
Brilliant Earth$2,035 AUD

39 data points across 19 retailers

19 retailers$337 AUD to $2,035 AUD

A
Cheapest Retailer
-
$337 AUD
$237 USD
Final sale: no returns
Retailer 2
-
$350 AUD
$246 USD
View
Price last confirmed 32 days ago
Retailer 3
-
$369 AUD
$259 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
$374 AUD
$263 USD
View
Retailer 5
-
$374 AUD
$263 USD
View
Price last confirmed 18 days ago
Retailer 6
-
$460 AUD
£254 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
$642 AUD
$451 USD
View
A
Retailer 8
-
$642 AUD
ZAR 7,286 ZAR
View
A
Retailer 9
-
$691 AUD
£382 GBP
View
A
Retailer 10
-
$692 AUD
€463 EUR
View
B+
Retailer 11
-
$830 AUD
$583 USD
View
B+
Retailer 12
-
$877 AUD
$616 USD
View
B+
Retailer 13
-
$913 AUD
View
B+
Retailer 14
-
$1,206 AUD
$847 USD
View
Retailer 15
-
$1,267 AUD
$890 USD
View
Price last confirmed 8 days ago
B
Retailer 16
-
$1,277 AUD
$897 USD
View
B
Retailer 17
-
$1,506 AUD
£833 GBP
View
B
Retailer 18
-
$1,752 AUD
$1,231 USD
View
Most Expensive
B
Brilliant Earth
12197745A · Oct 29
$2,035 AUD
$1,430 USD
View
18 more retailers have this diamond
Prices start from $337 AUDSave up to $1,698 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
$337 AUD