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Radiant|Lab Grown|IGI

1.28ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG751511531

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

Certificate IGI LG751511531

Diamond specifications and retailer prices

From $293 AUD
$206 USD
As of October 30, 2026
Save $2,511 AUD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,804 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore 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 LG751511531 or 751511531. Listed at 17 retailers as of October 29, 2026, with prices from $293 to $2,804, a $2,511 spread on the same certified stone. Do Amore Diamonds lists it at $2,804. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG751511531
Dimensions7.80 × 5.33 × 3.62 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.80 mm5.33 mm1.28 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG751511531
Side View
Table 64.0%Crown 41.6°Girdle: MediumPavilion 34.9°Culet: NoneDepth 67.9%

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: Oct 30
Current: $2,804 AUD|Low: $216 AUD|High: $2,804 AUD|Avg: $1,011 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 20
October 30, 2026
Retailer 9$216 AUD
Retailer 19$293 AUD
Retailer 7$327 AUD
Retailer 6$363 AUD
Retailer 20$363 AUD
Retailer 2$503 AUD
Retailer 3$534 AUD
Retailer 5$625 AUD
Retailer 13$748 AUD
Retailer 4$820 AUD
Retailer 16$925 AUD
Retailer 14$977 AUD
Retailer 18$1,170 AUD
Retailer 17$1,287 AUD
Retailer 10$1,453 AUD
Retailer 11$1,532 AUD
Retailer 15$1,607 AUD
Retailer 12$1,724 AUD
Retailer 8$1,922 AUD
Do Amore Diamonds$2,804 AUD

33 data points across 20 retailers

17 retailers$293 AUD to $2,804 AUD

A
Cheapest Retailer
-
$293 AUD
$206 USD
A
Retailer 2
-
$327 AUD
$230 USD
View
Final sale: no returns
A
Retailer 3
-
$363 AUD
$255 USD
View
A
Retailer 4
-
$363 AUD
$255 USD
View
A
Retailer 5
-
$503 AUD
£278 GBP
View
A
Retailer 6
-
$534 AUD
$375 USD
View
A
Retailer 7
-
$625 AUD
$439 USD
View
B+
Retailer 8
-
$748 AUD
£414 GBP
View
B+
Retailer 9
-
$820 AUD
$576 USD
View
Retailer 10
-
$925 AUD
$650 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$977 AUD
View
B
Retailer 12
-
$1,170 AUD
$822 USD
View
B
Retailer 13
-
$1,287 AUD
$904 USD
View
B
Retailer 14
-
$1,532 AUD
$1,076 USD
View
B
Retailer 15
-
$1,607 AUD
£889 GBP
View
B
Retailer 16
-
$1,724 AUD
$1,211 USD
View
Most Expensive
B
Do Amore Diamonds
27-164EC14EC · Oct 29
$2,804 AUD
$1,970 USD
View
16 more retailers have this diamond
Prices start from $293 AUDSave up to $2,511 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
$293 AUD