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Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG760552274

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

Certificate IGI LG760552274

Diamond specifications and retailer prices

From $282 USD
As of November 2, 2026
Save $2,628 USD (90%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $2,910 USD at Brilliant Earth · As of October 31, 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 LG760552274 or 760552274. Listed at 27 retailers as of October 31, 2026, with prices from $282 to $2,910, a $2,628 spread on the same certified stone. Brilliant Earth lists it at $2,910. 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 angle37°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760552274
Dimensions8.59 × 5.87 × 3.75 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
8.59 mm5.87 mm1.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760552274
Side View
Table 63.0%Crown 37°Girdle: MediumPavilion 34°Culet: NoneDepth 63.9%

Caratlytics Score

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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: Nov 2
Current: $2,910 USD|Low: $282 USD|High: $3,350 USD|Avg: $1,107 USD|-13.1%
Brilliant Earth
Retailer 2
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Retailer 24
November 2, 2026
Retailer 4$282 USD
Retailer 12$315 USD
Retailer 23$328 USD
Retailer 7$350 USD
Retailer 14$350 USD
Retailer 2$409 USD
Retailer 16$499 USD
Retailer 22$510 USD
Retailer 19$512 USD
Retailer 6$613 USD
Retailer 18$667 USD
Retailer 13$688 USD
Retailer 3$824 USD
Retailer 21$901 USD
Retailer 5$1,243 USD
Retailer 10$1,346 USD
Retailer 17$1,406 USD
Retailer 15$1,442 USD
Retailer 9$1,453 USD
Retailer 11$1,509 USD
Retailer 20$1,557 USD
Retailer 24$2,460 USD
Retailer 8$2,510 USD
Brilliant Earth$2,910 USD

34 data points across 24 retailers

27 retailers$282 USD to $2,910 USD

A
Cheapest Retailer
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$282 USD
A
Retailer 2
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$315 USD
View
Final sale: no returns
A
Retailer 3
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$328 USD
View
Retailer 4
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$350 USD
View
Price last confirmed 8 days ago
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Retailer 5
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$350 USD
View
A
Retailer 6
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$409 USD
£322 GBP
View
A
Retailer 7
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$499 USD
HK$3,900 HKD
View
A
Retailer 8
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$510 USD
View
A
Retailer 9
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$512 USD
View
A
Retailer 10
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$613 USD
View
A
Retailer 11
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$667 USD
ZAR 10,769 ZAR
View
A
Retailer 12
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$688 USD
£542 GBP
View
A
Retailer 13
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$824 USD
View
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Retailer 14
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$901 USD
A$1,386 AUD
View
B+
Retailer 15
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$1,076 USD
View
B+
Retailer 16
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$1,243 USD
View
B+
Retailer 17
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$1,315 USD
View
B+
Retailer 18
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$1,346 USD
View
B+
Retailer 19
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$1,406 USD
View
B+
Retailer 20
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$1,442 USD
SGD 1,949 SGD
View
B+
Retailer 21
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$1,453 USD
View
B+
Retailer 22
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$1,509 USD
£1,188 GBP
View
B+
Retailer 23
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$1,557 USD
£1,226 GBP
View
B
Retailer 24
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$2,460 USD
View
B
Retailer 25
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$2,510 USD
View
B
Retailer 26
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$2,845 USD
£2,240 GBP
View
Most Expensive
B
Brilliant Earth
20152704Y · Oct 31
$2,910 USD
View
26 more retailers have this diamond
Prices start from $282 USDSave up to $2,628 USD

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
$282 USD