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Round|Lab Grown|IGI

1.57ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG776679751

Shape and cutting style on the report: Round brilliant

Certificate IGI LG776679751

Diamond specifications and retailer prices

From $1,099 AUD
$770 USD
As of November 2, 2026
Save $4,309 AUD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,408 AUD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.57ct lab-grown round diamond

This 1.57ct 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 LG776679751 or 776679751. Listed at 12 retailers as of November 1, 2026, with prices from $1,099 to $5,408, a $4,309 spread on the same certified stone. Brilliant Earth lists it at $5,408. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776679751
Dimensions7.44 × 7.48 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.44 mm7.48 mm1.57 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776679751
Side View
Table 57.0%Crown 34.4°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $5,408 AUD|Low: $1,003 AUD|High: $5,408 AUD|Avg: $2,395 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$1,003 AUD
Retailer 11$1,327 AUD
Retailer 10$1,418 AUD
Retailer 2$1,729 AUD
Retailer 5$1,902 AUD
Retailer 8$2,275 AUD
Retailer 6$2,904 AUD
Retailer 9$3,226 AUD
Retailer 3$3,740 AUD
Retailer 4$4,360 AUD
Brilliant Earth$5,408 AUD

42 data points across 11 retailers

12 retailers$1,099 AUD to $5,408 AUD

Retailer 1
-
$1,003 AUD
$703 USD
Price last confirmed 17 days ago
A
Retailer 2
-
$1,099 AUD
$770 USD
View
B+
Retailer 3
-
$1,327 AUD
$930 USD
View
B+
Retailer 4
-
$1,418 AUD
$994 USD
View
B+
Retailer 5
-
$1,729 AUD
£954 GBP
View
B+
Retailer 6
-
$1,902 AUD
ZAR 21,530 ZAR
View
Retailer 7
-
$2,275 AUD
View
Price last confirmed 25 days ago
Retailer 8
-
$2,904 AUD
$2,035 USD
View
Price last confirmed 12 days ago
B
Retailer 9
-
$3,226 AUD
$2,261 USD
View
B
Retailer 10
-
$3,740 AUD
$2,621 USD
View
B
Retailer 11
-
$4,360 AUD
£2,406 GBP
View
Most Expensive
B
Brilliant Earth
19671652A · Nov 1
$5,408 AUD
$3,790 USD
View
11 more retailers have this diamond
Prices start from $1,099 AUDSave up to $4,309 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
1.57ct Round
$1,099 AUD