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Round|Lab Grown|IGI

1.55ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG815609356

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815609356

Diamond specifications and retailer prices

From $494 AUD
$346 USD
As of November 1, 2026
Save $4,800 AUD (91%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,294 AUD at Brilliant Earth · As of November 2, 2026
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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815609356 or 815609356. Listed at 23 retailers as of November 1, 2026, with prices from $494 to $5,294, a $4,800 spread on the same certified stone. Brilliant Earth lists it at $5,294. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815609356
Dimensions7.47 × 7.49 × 4.51 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.47 mm7.49 mm1.55 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815609356
Side View
Table 58.0%Crown 33.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
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 1
Current: $5,294 AUD|Low: $494 AUD|High: $5,294 AUD|Avg: $1,681 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
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Retailer 21
Retailer 22
November 2, 2026
Retailer 14$494 AUD
Retailer 8$572 AUD
Retailer 3$611 AUD
Retailer 11$611 AUD
Retailer 6$676 AUD
Retailer 22$816 AUD
Retailer 21$828 AUD
Retailer 2$960 AUD
Retailer 4$977 AUD
Retailer 13$1,054 AUD
Retailer 16$1,086 AUD
Retailer 12$1,297 AUD
Retailer 19$1,419 AUD
Retailer 18$1,421 AUD
Retailer 5$1,965 AUD
Retailer 7$1,975 AUD
Retailer 10$2,026 AUD
Retailer 15$2,314 AUD
Retailer 17$2,388 AUD
Retailer 9$2,638 AUD
Retailer 20$2,804 AUD
Brilliant Earth$5,294 AUD

33 data points across 22 retailers

23 retailers$494 AUD to $5,294 AUD

A
Cheapest Retailer
-
$494 AUD
$346 USD
A
Retailer 2
-
$572 AUD
$401 USD
View
Retailer 3
-
$611 AUD
$428 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$611 AUD
$428 USD
View
A
Retailer 5
-
$676 AUD
HK$3,700 HKD
View
A
Retailer 6
-
$816 AUD
$572 USD
View
A
Retailer 7
-
$828 AUD
$580 USD
View
A
Retailer 8
-
$960 AUD
€641 EUR
View
A
Retailer 9
-
$977 AUD
$685 USD
View
A
Retailer 10
-
$1,054 AUD
ZAR 11,937 ZAR
View
A
Retailer 11
-
$1,086 AUD
£599 GBP
View
B+
Retailer 12
-
$1,297 AUD
$909 USD
View
B+
Retailer 13
-
$1,419 AUD
View
B+
Retailer 14
-
$1,421 AUD
$996 USD
View
B+
Retailer 15
-
$1,965 AUD
$1,377 USD
View
B+
Retailer 16
-
$1,975 AUD
SGD 1,870 SGD
View
B+
Retailer 17
-
$2,026 AUD
$1,420 USD
View
B
Retailer 18
-
$2,202 AUD
$1,543 USD
View
B
Retailer 19
-
$2,314 AUD
$1,622 USD
View
B+
Retailer 20
-
$2,388 AUD
£1,318 GBP
View
B
Retailer 21
-
$2,638 AUD
$1,849 USD
View
B
Retailer 22
-
$2,804 AUD
$1,965 USD
View
Most Expensive
B
Brilliant Earth
20763193A · Nov 2
$5,294 AUD
$3,710 USD
View
22 more retailers have this diamond
Prices start from $494 AUDSave up to $4,800 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 Round
$494 AUD