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Radiant|Lab Grown|IGI

1.28ct F VS1 Radiant Lab Grown Diamond

ID • F/VS1 • IGI LG831640256

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

Certificate IGI LG831640256

Diamond specifications and retailer prices

From €159 EUR
$178 USD
As of November 2, 2026
Save €1,366 EUR (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,525 EUR 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 LG831640256 or 831640256. Listed at 14 retailers as of November 2, 2026, with prices from €159 to €1,525, a €1,366 spread on the same certified stone. Do Amore Diamonds lists it at €1,525. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831640256
Dimensions7.75 × 5.32 × 3.53 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.75 mm5.32 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831640256
Side View
Table 63.0%Crown 42.8°Girdle: MediumPavilion 34.6°Culet: NoneDepth 66.4%

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 2
Current: €1,525 EUR|Low: €152 EUR|High: €1,525 EUR|Avg: €613 EUR|+7.5%
Do Amore Diamonds
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
November 2, 2026
Retailer 14€159 EUR
Retailer 13€184 EUR
Retailer 15€308 EUR
Retailer 3€339 EUR
Retailer 5€349 EUR
Retailer 2€529 EUR
Retailer 9€571 EUR
Retailer 11€571 EUR
Retailer 10€618 EUR
Retailer 7€661 EUR
Retailer 12€667 EUR
Retailer 4€697 EUR
Retailer 6€887 EUR
Retailer 8€1,013 EUR
Do Amore Diamonds€1,525 EUR

27 data points across 15 retailers

14 retailers€159 EUR to €1,525 EUR

A
Cheapest Retailer
-
€159 EUR
$178 USD
A
Retailer 2
-
€184 EUR
$206 USD
View
A
Retailer 3
-
€308 EUR
HK$2,700 HKD
View
A
Retailer 4
-
€339 EUR
$380 USD
View
A
Retailer 5
-
€349 EUR
$391 USD
View
B+
Retailer 6
-
€529 EUR
A$912 AUD
View
B+
Retailer 7
-
€571 EUR
$640 USD
View
Retailer 8
-
€571 EUR
$640 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
€618 EUR
A$1,067 AUD
View
B
Retailer 10
-
€667 EUR
$748 USD
View
B+
Retailer 11
-
€697 EUR
$782 USD
View
B
Retailer 12
-
€887 EUR
SGD 1,344 SGD
View
B
Retailer 13
-
€1,013 EUR
£895 GBP
View
Most Expensive
B
Do Amore Diamonds
27-B6CB48D66 · Nov 2
€1,525 EUR
$1,710 USD
View
13 more retailers have this diamond
Prices start from €159 EURSave up to €1,366 EUR

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
€159 EUR