Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG771654552

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

Certificate IGI LG771654552

Diamond specifications and retailer prices

From €252 EUR
$282 USD
As of October 30, 2026
Save €2,352 EUR (90%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: €2,605 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG771654552 or 771654552. Listed at 27 retailers as of October 30, 2026, with prices from €252 to €2,605, a €2,352 spread on the same certified stone. Brilliant Earth lists it at €2,605. 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
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771654552
Dimensions8.52 × 5.85 × 3.76 mm
L/W Ratio1.46
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
8.52 mm5.85 mm1.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771654552
Side View
Table 65.0%Crown 40.8°Girdle: MediumPavilion 34.4°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €2,605 EUR|Low: €252 EUR|High: €2,999 EUR|Avg: €985 EUR|-13.1%
Brilliant Earth
Retailer 2
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Retailer 24
October 30, 2026
Retailer 4€252 EUR
Retailer 12€282 EUR
Retailer 23€294 EUR
Retailer 7€313 EUR
Retailer 14€313 EUR
Retailer 13€367 EUR
Retailer 16€447 EUR
Retailer 21€456 EUR
Retailer 2€458 EUR
Retailer 6€549 EUR
Retailer 20€595 EUR
Retailer 18€615 EUR
Retailer 3€738 EUR
Retailer 19€806 EUR
Retailer 5€1,113 EUR
Retailer 10€1,205 EUR
Retailer 17€1,258 EUR
Retailer 15€1,291 EUR
Retailer 9€1,301 EUR
Retailer 11€1,350 EUR
Retailer 22€1,388 EUR
Retailer 24€2,202 EUR
Retailer 8€2,247 EUR
Brilliant Earth€2,605 EUR

29 data points across 24 retailers

27 retailers€252 EUR to €2,605 EUR

A
Cheapest Retailer
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€252 EUR
$282 USD
A
Retailer 2
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€282 EUR
$315 USD
View
Final sale: no returns
A
Retailer 3
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€294 EUR
$328 USD
View
A
Retailer 4
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€313 EUR
$350 USD
View
A
Retailer 5
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€313 EUR
$350 USD
View
A
Retailer 6
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€367 EUR
£323 GBP
View
A
Retailer 7
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€447 EUR
HK$3,900 HKD
View
A
Retailer 8
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€456 EUR
$510 USD
View
A
Retailer 9
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€458 EUR
$512 USD
View
A
Retailer 10
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€549 EUR
$613 USD
View
A
Retailer 11
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€595 EUR
ZAR 10,731 ZAR
View
A
Retailer 12
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€615 EUR
£541 GBP
View
A
Retailer 13
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€738 EUR
$824 USD
View
A
Retailer 14
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€806 EUR
A$1,386 AUD
View
B+
Retailer 15
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€963 EUR
$1,076 USD
View
B+
Retailer 16
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€1,113 EUR
$1,243 USD
View
B+
Retailer 17
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€1,177 EUR
$1,315 USD
View
B+
Retailer 18
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€1,205 EUR
$1,346 USD
View
B+
Retailer 19
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€1,258 EUR
$1,406 USD
View
B+
Retailer 20
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€1,291 EUR
SGD 1,949 SGD
View
B+
Retailer 21
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€1,301 EUR
$1,453 USD
View
B+
Retailer 22
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€1,350 EUR
£1,188 GBP
View
B+
Retailer 23
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€1,388 EUR
£1,221 GBP
View
B
Retailer 24
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€2,202 EUR
$2,460 USD
View
B
Retailer 25
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€2,247 EUR
$2,510 USD
View
B
Retailer 26
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€2,546 EUR
£2,240 GBP
View
Most Expensive
B
Brilliant Earth
20152527Y · Oct 30
€2,605 EUR
$2,910 USD
View
26 more retailers have this diamond
Prices start from €252 EURSave up to €2,352 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
€252 EUR