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Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG762551885

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

Certificate IGI LG762551885

Diamond specifications and retailer prices

From $328 AUD
$230 USD
As of November 2, 2026
Save $1,570 AUD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,382 AUD at Do Amore Diamonds · As of November 2, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG762551885 or 762551885. Listed at 22 retailers as of November 2, 2026, with a 478% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762551885
Dimensions7.70 × 5.29 × 3.56 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
7.70 mm5.29 mm1.28 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762551885
Side View
Table 66.0%Crown 45.6°Girdle: MediumPavilion 34.6°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
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 2
Current: $538 AUD|Low: $315 AUD|High: $1,898 AUD|Avg: $945 AUD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 2$328 AUD
Retailer 4$368 AUD
Retailer 3$407 AUD
Retailer 1$538 AUD
Retailer 6$776 AUD
Retailer 5$857 AUD
Retailer 11$949 AUD
Retailer 10$1,051 AUD
Retailer 9$1,094 AUD
Retailer 12$1,314 AUD
Retailer 8$1,810 AUD
Retailer 7$1,898 AUD

44 data points across 12 retailers

22 retailers$328 AUD to $1,898 AUD

A
Cheapest Retailer
-
$328 AUD
$230 USD
A
Retailer 2
-
$368 AUD
$258 USD
View
Final sale: no returns
A
Retailer 3
-
$381 AUD
$267 USD
View
Retailer 4
-
$407 AUD
$285 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$407 AUD
$285 USD
View
A
Retailer 6
-
$538 AUD
£297 GBP
View
B+
Retailer 7
-
$547 AUD
$383 USD
View
A
Retailer 8
-
$547 AUD
$383 USD
View
B+
Retailer 9
-
$776 AUD
ZAR 8,788 ZAR
View
B+
Retailer 10
-
$857 AUD
£473 GBP
View
Retailer 11
-
$949 AUD
$665 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$1,051 AUD
View
B+
Retailer 13
-
$1,094 AUD
View
B
Retailer 14
-
$1,314 AUD
$921 USD
View
B
Retailer 15
-
$1,445 AUD
$1,013 USD
View
B
Retailer 16
-
$1,689 AUD
$1,184 USD
View
B
Retailer 17
-
$1,761 AUD
£972 GBP
View
B
Retailer 18
-
$1,810 AUD
£999 GBP
View
B
Retailer 19
-
$1,839 AUD
$1,289 USD
View
B
Retailer 20
-
$1,898 AUD
$1,330 USD
View
Retailer 21
-
$3,153 AUD
$2,210 USD
View
Price under review
Most Expensive
Do Amore Diamonds
23-762551885 · Nov 2
$3,382 AUD
$2,370 USD
View
Price under review
21 more retailers have this diamond
Prices start from $328 AUDSave up to $1,570 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
$328 AUD