Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG689566199

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

Certificate IGI LG689566199

Diamond specifications and retailer prices

From €280 EUR
As of November 4, 2026
Save €1,105 EUR (80%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: €2,285 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG689566199 or 689566199. Listed at 29 retailers as of November 4, 2026, with a 395% 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

1.55
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689566199
Dimensions8.31 × 5.87 × 3.80 mm
L/W Ratio1.42
Culet sizePointed
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
8.31 mm5.87 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689566199
Side View
Table 62.0%Crown 37.9°Girdle: MediumPavilion 33.2°Culet: NoneDepth 64.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €2,285 EUR|Low: €280 EUR|High: €2,294 EUR|Avg: €971 EUR|-0.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 5, 2026
Retailer 17€280 EUR
Retailer 18€313 EUR
Retailer 16€398 EUR
Retailer 15€484 EUR
Retailer 20€488 EUR
Retailer 7€564 EUR
Retailer 2€612 EUR
Retailer 11€622 EUR
Retailer 9€780 EUR
Retailer 5€814 EUR
Retailer 14€947 EUR
Retailer 21€1,017 EUR
Retailer 19€1,115 EUR
Retailer 6€1,153 EUR
Retailer 10€1,155 EUR
Retailer 4€1,161 EUR
Retailer 8€1,333 EUR
Retailer 3€1,385 EUR
Retailer 13€1,385 EUR
Retailer 12€1,497 EUR
Rare Carat€2,285 EUR

34 data points across 21 retailers

29 retailers€280 EUR to €1,385 EUR

A
Cheapest Retailer
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€280 EUR
Retailer 2
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€291 EUR
View
Price last confirmed 28 days ago
Retailer 3
-
€310 EUR
View
Price last confirmed 36 days ago
A
Retailer 4
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€313 EUR
View
Final sale: no returns
Retailer 5
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€359 EUR
View
Price last confirmed 39 days ago
Retailer 6
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€361 EUR
View
Price last confirmed 33 days ago
Retailer 7
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€379 EUR
View
Price last confirmed 37 days ago
A
Retailer 8
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€398 EUR
View
A
Retailer 9
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€484 EUR
View
A
Retailer 10
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€488 EUR
View
A
Retailer 11
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€564 EUR
View
A
Retailer 12
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€590 EUR
View
A
Retailer 13
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€612 EUR
View
A
Retailer 14
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€622 EUR
View
A
Retailer 15
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€780 EUR
View
A
Retailer 16
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€814 EUR
View
B+
Retailer 17
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€947 EUR
View
B+
Retailer 18
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€1,017 EUR
View
B+
Retailer 19
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€1,115 EUR
View
B+
Retailer 20
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€1,153 EUR
View
B+
Retailer 21
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€1,155 EUR
View
Retailer 22
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€1,161 EUR
View
Price last confirmed 26 days ago
B+
Retailer 23
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€1,161 EUR
View
Retailer 24
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€1,235 EUR
View
Price last confirmed 36 days ago
B+
Retailer 25
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€1,333 EUR
View
B+
Retailer 26
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€1,385 EUR
View
B+
Retailer 27
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€1,385 EUR
View
Retailer 28
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€1,497 EUR
View
Price last confirmed 28 days ago
Most Expensive
Rare Carat
1169-63-s · Oct 28
€2,285 EUR
$2,575 USD
View
Price last confirmed 7 days ago
28 more retailers have this diamond
Prices start from €280 EURSave up to €1,105 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
1.55ct Radiant
€280 EUR