CaratHunter
Plans
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 €1,371 EUR (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,531 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 €1,531, a €1,371 spread on the same certified stone. Do Amore Diamonds lists it at €1,531. 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
Color
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

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: Nov 2
Current: €1,531 EUR|Low: €153 EUR|High: €1,531 EUR|Avg: €615 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€309 EUR
Retailer 3€340 EUR
Retailer 5€350 EUR
Retailer 2€531 EUR
Retailer 9€573 EUR
Retailer 11€573 EUR
Retailer 10€621 EUR
Retailer 7€663 EUR
Retailer 12€670 EUR
Retailer 4€700 EUR
Retailer 6€890 EUR
Retailer 8€1,017 EUR
Do Amore Diamonds€1,531 EUR

27 data points across 15 retailers

14 retailers€159 EUR to €1,531 EUR

A
Cheapest Retailer
-
€159 EUR
$178 USD
A
Retailer 2
-
€184 EUR
$206 USD
View
A
Retailer 3
-
€309 EUR
HK$2,700 HKD
View
A
Retailer 4
-
€340 EUR
$380 USD
View
A
Retailer 5
-
€350 EUR
$391 USD
View
B+
Retailer 6
-
€531 EUR
A$912 AUD
View
B+
Retailer 7
-
€573 EUR
$640 USD
View
Retailer 8
-
€573 EUR
$640 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
€621 EUR
A$1,067 AUD
View
B
Retailer 10
-
€670 EUR
$748 USD
View
B+
Retailer 11
-
€700 EUR
$782 USD
View
B
Retailer 12
-
€890 EUR
SGD 1,344 SGD
View
B
Retailer 13
-
€1,017 EUR
£895 GBP
View
Most Expensive
B
Do Amore Diamonds
27-B6CB48D66 · Nov 2
€1,531 EUR
$1,710 USD
View
13 more retailers have this diamond
Prices start from €159 EURSave up to €1,371 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