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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 $770 USD
As of October 30, 2026
Save $3,020 USD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,790 USD 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 October 30, 2026, with prices from $770 to $3,790, a $3,020 spread on the same certified stone. Brilliant Earth lists it at $3,790. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,790 USD|Low: $703 USD|High: $3,790 USD|Avg: $1,669 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$703 USD
Retailer 11$930 USD
Retailer 10$994 USD
Retailer 4$1,211 USD
Retailer 5$1,333 USD
Retailer 8$1,594 USD
Retailer 6$2,035 USD
Retailer 9$2,261 USD
Retailer 3$2,621 USD
Retailer 2$3,056 USD
Brilliant Earth$3,790 USD

42 data points across 11 retailers

12 retailers$770 USD to $3,790 USD

Retailer 1
-
$703 USD
Price last confirmed 16 days ago
A
Retailer 2
-
$770 USD
View
B+
Retailer 3
-
$930 USD
View
B+
Retailer 4
-
$994 USD
View
B+
Retailer 5
-
$1,211 USD
£954 GBP
View
B+
Retailer 6
-
$1,333 USD
ZAR 21,530 ZAR
View
Retailer 7
-
$1,594 USD
A$2,453 AUD
View
Price last confirmed 24 days ago
Retailer 8
-
$2,035 USD
View
Price last confirmed 11 days ago
B
Retailer 9
-
$2,261 USD
View
B
Retailer 10
-
$2,621 USD
View
B
Retailer 11
-
$3,056 USD
£2,406 GBP
View
Most Expensive
B
Brilliant Earth
19671652A · Nov 1
$3,790 USD
View
11 more retailers have this diamond
Prices start from $770 USDSave up to $3,020 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
1.57ct Round
$770 USD