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Round|Lab Grown|IGI

1.57ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG685518428

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685518428

Diamond specifications and retailer prices

From HK$9,067 HKD
A$1,778 AUD
As of November 2, 2026
7 retailers carry this diamond
Most expensive: HK$15,617 HKD at Rare Carat · As of September 13, 2026
View at Rare Carat

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 LG685518428 or 685518428. Listed at 7 retailers as of November 2, 2026. 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 angle35.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685518428
Dimensions7.39 × 7.47 × 4.61 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
7.39 mm7.47 mm1.57 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685518428
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$15,617 HKD|Low: HK$3,617 HKD|High: HK$28,715 HKD|Avg: HK$11,304 HKD
Rare Carat
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
October 3, 2026
Retailer 12HK$3,617 HKD
Retailer 3HK$4,009 HKD
Retailer 9HK$5,782 HKD
Retailer 15HK$5,806 HKD
Retailer 6HK$6,127 HKD
Retailer 13HK$6,957 HKD
Retailer 14HK$7,433 HKD
Retailer 2HK$9,067 HKD
Retailer 16HK$10,341 HKD
Retailer 8HK$14,224 HKD
Retailer 7HK$14,594 HKD
Retailer 4HK$15,381 HKD
Rare CaratHK$15,617 HKD
Retailer 10HK$16,251 HKD
Retailer 11HK$16,398 HKD
Retailer 5HK$28,715 HKD

7 data points across 16 retailers

7 retailers

Retailer 1
-
HK$3,232 HKD
$412 USD
Price last confirmed 44 days ago
Retailer 2
-
HK$3,954 HKD
$504 USD
View
Price last confirmed 41 days ago
B+
Retailer 3
-
HK$9,067 HKD
A$1,778 AUD
View
Retailer 4
-
HK$10,341 HKD
$1,318 USD
View
Price last confirmed 41 days ago
Retailer 5
-
HK$12,734 HKD
A$2,497 AUD
View
Price last confirmed 96 days ago
Retailer 6
-
HK$14,216 HKD
$1,812 USD
View
Price last confirmed 42 days ago
Most Expensive
Rare Carat
V665679LG · Sep 13
HK$15,617 HKD
$1,991 USD
View
Price last confirmed 50 days ago
6 more retailers have this diamond
Prices start from HK$9,067 HKD

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.

B+
1.57ct Round
HK$9,067 HKD