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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG801686051

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

Certificate IGI LG801686051

Diamond specifications and retailer prices

From €376 EUR
$420 USD
As of November 1, 2026
Save €2,014 EUR (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €2,390 EUR at Do Amore Diamonds · As of November 1, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG801686051 or 801686051. Listed at 15 retailers as of November 1, 2026, with prices from €376 to €2,390, a €2,014 spread on the same certified stone. Do Amore Diamonds lists it at €2,390. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801686051
Dimensions7.76 × 5.38 × 3.59 mm
L/W Ratio1.44
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.76 mm5.38 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801686051
Side View
Table 63.0%Crown 42.5°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 66.7%

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 1
Current: €2,390 EUR|Low: €376 EUR|High: €3,043 EUR|Avg: €1,170 EUR|-9.8%
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
November 1, 2026
Retailer 4€376 EUR
Retailer 5€380 EUR
Retailer 8€477 EUR
Retailer 12€492 EUR
Retailer 10€547 EUR
Retailer 3€619 EUR
Retailer 6€626 EUR
Retailer 9€1,027 EUR
Retailer 2€1,478 EUR
Retailer 7€2,130 EUR
Retailer 11€2,215 EUR
Do Amore Diamonds€2,390 EUR

35 data points across 12 retailers

15 retailers€376 EUR to €2,390 EUR

Retailer 1
-
€284 EUR
$317 USD
Price last confirmed 21 days ago
Retailer 2
-
€328 EUR
$367 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
€376 EUR
$420 USD
View
Final sale: no returns
A
Retailer 4
-
€380 EUR
£334 GBP
View
A
Retailer 5
-
€477 EUR
$533 USD
View
A
Retailer 6
-
€492 EUR
$550 USD
View
A
Retailer 7
-
€547 EUR
$611 USD
View
A
Retailer 8
-
€619 EUR
$692 USD
View
A
Retailer 9
-
€626 EUR
View
B+
Retailer 10
-
€1,027 EUR
$1,147 USD
View
Retailer 11
-
€1,248 EUR
$1,394 USD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
€1,478 EUR
£1,300 GBP
View
B
Retailer 13
-
€2,130 EUR
$2,380 USD
View
Retailer 14
-
€2,215 EUR
$2,475 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Do Amore Diamonds
27-43D2CC484 · Nov 1
€2,390 EUR
$2,670 USD
View
14 more retailers have this diamond
Prices start from €376 EURSave up to €2,014 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
€376 EUR