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Round|Lab Grown|IGI

1.55ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG750501312

Certificate IGI LG750501312

Diamond specifications and retailer prices

From $321 USD
Save $3,869 USD (92%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $4,190 USD at Brilliant Earth
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round 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 LG750501312 or 750501312. Listed at 26 retailers, with prices from $321 to $4,190 at Brilliant Earth, a $3,869 spread on the same certified stone. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750501312
Dimensions7.36 × 7.41 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.36 mm7.41 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750501312
Side View
Table 56.0%Crown 35.3°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $4,190 USD|Low: $268 USD|High: $4,650 USD|Avg: $1,209 USD|-9.9%
Brilliant Earth
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
Retailer 17
Retailer 18
October 1, 2026
Retailer 6$374 USD
Retailer 14$640 USD
Retailer 11$653 USD
Retailer 13$671 USD
Retailer 3$698 USD
Retailer 15$718 USD
Retailer 9$746 USD
Retailer 4$748 USD
Retailer 16$937 USD
Retailer 18$963 USD
Retailer 10$1,011 USD
Retailer 8$1,326 USD
Retailer 7$1,377 USD
Retailer 2$1,578 USD
Retailer 5$1,623 USD
Retailer 17$1,683 USD
Retailer 12$1,759 USD
Brilliant Earth$4,190 USD

40 data points across 18 retailers

26 retailers$321 USD to $4,190 USD

A
Cheapest Retailer
-
$321 USD
A
Retailer 2
-
$374 USD
View
A
Retailer 3
-
$391 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$409 USD
View
A
Retailer 5
-
$415 USD
View
A
Retailer 6
-
$640 USD
View
A
Retailer 7
-
$653 USD
€622 EUR
View
A
Retailer 8
-
$671 USD
View
A
Retailer 9
-
$698 USD
ZAR 11,277 ZAR
View
A
Retailer 10
-
$720 USD
£567 GBP
View
A
Retailer 11
-
$746 USD
A$1,148 AUD
View
A
Retailer 12
-
$748 USD
View
A
Retailer 13
-
$937 USD
View
A
Retailer 14
-
$963 USD
A$1,481 AUD
View
A
Retailer 15
-
$1,011 USD
View
B+
Retailer 16
-
$1,123 USD
View
Price last confirmed 7 days ago
B+
Retailer 17
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$1,326 USD
SGD 1,792 SGD
View
B+
Retailer 18
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$1,333 USD
View
B+
Retailer 19
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$1,377 USD
View
B+
Retailer 20
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$1,578 USD
View
B+
Retailer 21
-
$1,580 USD
View
B+
Retailer 22
-
$1,623 USD
View
B+
Retailer 23
-
$1,683 USD
£1,325 GBP
View
B+
Retailer 24
-
$1,759 USD
A$2,706 AUD
View
B
Retailer 25
-
$2,249 USD
View
Price last confirmed 81 days ago
Most Expensive
B
Brilliant Earth
20667466A · Oct 1
$4,190 USD
View
25 more retailers have this diamond
Prices start from $321 USDSave up to $3,869 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.

A
1.55ct Round
$321 USD