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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG815698208

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

Certificate IGI LG815698208

Diamond specifications and retailer prices

From €214 EUR
$239 USD
As of October 30, 2026
Save €1,836 EUR (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €2,215 EUR at Rare Carat · As of October 18, 2026
View at Rare Carat

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 LG815698208 or 815698208. Listed at 14 retailers as of October 30, 2026, with a 858% 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
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815698208
Dimensions7.54 × 5.35 × 3.60 mm
L/W Ratio1.41
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
7.54 mm5.35 mm1.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815698208
Side View
Table 65.0%Crown 45°Girdle: STK-THKPavilion 34.3°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: Oct 30
Current: €2,215 EUR|Low: €214 EUR|High: €2,945 EUR|Avg: €971 EUR|+5.4%
Rare Carat
Retailer 2
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Retailer 6
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Retailer 11
Retailer 12
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Retailer 21
November 1, 2026
Retailer 16€214 EUR
Retailer 9€243 EUR
Retailer 4€248 EUR
Retailer 14€274 EUR
Retailer 2€301 EUR
Retailer 20€447 EUR
Retailer 17€482 EUR
Retailer 10€688 EUR
Retailer 8€704 EUR
Retailer 7€747 EUR
Retailer 11€801 EUR
Retailer 19€856 EUR
Retailer 5€859 EUR
Retailer 21€941 EUR
Retailer 3€985 EUR
Retailer 15€1,180 EUR
Retailer 12€1,403 EUR
Retailer 6€1,672 EUR
Retailer 13€1,799 EUR
Retailer 18€2,050 EUR
Rare Carat€2,215 EUR

23 data points across 21 retailers

14 retailers€214 EUR to €2,050 EUR

A
Cheapest Retailer
-
€214 EUR
$239 USD
A
Retailer 2
-
€248 EUR
$277 USD
View
A
Retailer 3
-
€301 EUR
£265 GBP
View
A
Retailer 4
-
€447 EUR
$499 USD
View
A
Retailer 5
-
€482 EUR
$538 USD
View
B+
Retailer 6
-
€856 EUR
$956 USD
View
Retailer 7
-
€859 EUR
$960 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
€941 EUR
$1,051 USD
View
B+
Retailer 9
-
€985 EUR
$1,100 USD
View
B+
Retailer 10
-
€1,180 EUR
£1,038 GBP
View
B
Retailer 11
-
€1,672 EUR
$1,868 USD
View
B
Retailer 12
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€1,799 EUR
$2,010 USD
View
B
Retailer 13
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€2,050 EUR
$2,290 USD
View
Most Expensive
Rare Carat
VR-220174 · Oct 18
€2,215 EUR
$2,475 USD
View
Price last confirmed 13 days ago
13 more retailers have this diamond
Prices start from €214 EURSave up to €1,836 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
€214 EUR