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Radiant|Lab Grown|IGI

1.28ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG640443023

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

Certificate IGI LG640443023

Diamond specifications and retailer prices

From $357 AUD
$251 USD
As of October 30, 2026
Save $1,573 AUD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,930 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG640443023 or 640443023. Listed at 18 retailers as of October 30, 2026, with prices from $357 to $1,930, a $1,573 spread on the same certified stone. Reve Diamonds lists it at $1,930. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640443023
Dimensions8.00 × 5.35 × 3.56 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.00 mm5.35 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640443023
Side View
Table 63.0%Crown 38.5°Girdle: MED-STKPavilion 31.3°Culet: NoneDepth 66.5%

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: Oct 30
Current: $843 AUD|Low: $384 AUD|High: $1,930 AUD|Avg: $1,040 AUD|+9.2%
Retailer 1
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
Reve Diamonds
October 30, 2026
Retailer 6$399 AUD
Retailer 13$443 AUD
Retailer 10$669 AUD
Retailer 3$709 AUD
Retailer 2$743 AUD
Retailer 8$761 AUD
Retailer 4$804 AUD
Retailer 1$843 AUD
Retailer 9$1,078 AUD
Retailer 12$1,310 AUD
Retailer 11$1,361 AUD
Retailer 14$1,423 AUD
Retailer 5$1,497 AUD
Retailer 7$1,784 AUD
Reve Diamonds$1,930 AUD

43 data points across 15 retailers

18 retailers$357 AUD to $1,930 AUD

A
Cheapest Retailer
-
$357 AUD
$251 USD
A
Retailer 2
-
$399 AUD
$280 USD
View
Final sale: no returns
A
Retailer 3
-
$414 AUD
$291 USD
View
A
Retailer 4
-
$443 AUD
$311 USD
View
A
Retailer 5
-
$443 AUD
$311 USD
View
A
Retailer 6
-
$669 AUD
$470 USD
View
B+
Retailer 7
-
$709 AUD
$498 USD
View
B+
Retailer 8
-
$743 AUD
$522 USD
View
B+
Retailer 9
-
$761 AUD
ZAR 8,633 ZAR
View
B+
Retailer 10
-
$804 AUD
$565 USD
View
B+
Retailer 11
-
$843 AUD
£466 GBP
View
B+
Retailer 12
-
$1,078 AUD
View
B
Retailer 13
-
$1,310 AUD
$920 USD
View
B
Retailer 14
-
$1,361 AUD
$956 USD
View
B
Retailer 15
-
$1,423 AUD
$1,000 USD
View
B
Retailer 16
-
$1,497 AUD
$1,052 USD
View
B
Retailer 17
-
$1,784 AUD
£987 GBP
View
Most Expensive
B
Reve Diamonds
11AB9F759 · Oct 30
$1,930 AUD
$1,356 USD
View
17 more retailers have this diamond
Prices start from $357 AUDSave up to $1,573 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
$357 AUD