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Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG655451354

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

Certificate IGI LG655451354

Diamond specifications and retailer prices

From $1,018 AUD
As of November 4, 2026
Save $5,468 AUD (84%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $9,038 AUD at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

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 LG655451354 or 655451354. Listed at 26 retailers as of November 4, 2026, with a 537% 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 angle44.4°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655451354
Dimensions8.04 × 5.70 × 3.85 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.04 mm5.70 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655451354
Side View
Table 67.0%Crown 44.4°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 67.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $9,038 AUD|Low: $978 AUD|High: $9,038 AUD|Avg: $3,103 AUD
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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 6$1,018 AUD
Retailer 7$1,180 AUD
Retailer 16$1,180 AUD
Retailer 14$1,433 AUD
Retailer 10$1,470 AUD
Retailer 8$1,668 AUD
Retailer 9$1,980 AUD
Retailer 11$2,395 AUD
Retailer 15$2,832 AUD
Retailer 3$2,909 AUD
Retailer 13$3,244 AUD
Retailer 4$4,007 AUD
Retailer 5$4,026 AUD
Retailer 2$4,872 AUD
Retailer 12$6,486 AUD
Do Amore Diamonds$9,038 AUD

38 data points across 16 retailers

26 retailers$1,018 AUD to $6,486 AUD

Retailer 1
-
$1,018 AUD
Price last confirmed 28 days ago
A
Retailer 2
-
$1,018 AUD
View
Retailer 3
-
$1,108 AUD
View
Price last confirmed 39 days ago
Retailer 4
-
$1,180 AUD
View
Price last confirmed 33 days ago
Retailer 5
-
$1,180 AUD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$1,220 AUD
View
Final sale: no returns
A
Retailer 7
-
$1,304 AUD
View
A
Retailer 8
-
$1,397 AUD
View
A
Retailer 9
-
$1,433 AUD
View
A
Retailer 10
-
$1,470 AUD
View
B+
Retailer 11
-
$1,668 AUD
View
B+
Retailer 12
-
$1,980 AUD
View
B+
Retailer 13
-
$2,395 AUD
View
B+
Retailer 14
-
$2,832 AUD
View
B
Retailer 15
-
$2,909 AUD
View
B
Retailer 16
-
$3,244 AUD
View
Retailer 17
-
$3,665 AUD
View
Price last confirmed 36 days ago
B
Retailer 18
-
$3,665 AUD
View
B
Retailer 19
-
$4,007 AUD
View
B
Retailer 20
-
$4,026 AUD
View
B
Retailer 21
-
$4,040 AUD
View
B
Retailer 22
-
$4,438 AUD
View
B
Retailer 23
-
$4,659 AUD
View
B
Retailer 24
-
$4,872 AUD
View
B
Retailer 25
-
$6,486 AUD
View
Most Expensive
Do Amore Diamonds
27-D60FBC30F · Nov 3
$9,038 AUD
$6,340 USD
View
Price under review
25 more retailers have this diamond
Prices start from $1,018 AUDSave up to $5,468 AUD

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
$1,018 AUD