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Round|Lab Grown|IGI

1.57ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG645410374

Shape and cutting style on the report: Round brilliant

Certificate IGI LG645410374

Diamond specifications and retailer prices

From HK$2,244 HKD
$286 USD
As of November 1, 2026
Save HK$9,278 HKD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$15,221 HKD at Rare Carat · As of October 21, 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 LG645410374 or 645410374. Listed at 20 retailers as of November 1, 2026, with a 413% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645410374
Dimensions7.45 × 7.43 × 4.61 mm
L/W Ratio1.00
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
7.45 mm7.43 mm1.57 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645410374
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.9%

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 1
Current: HK$15,221 HKD|Low: HK$2,244 HKD|High: HK$15,417 HKD|Avg: HK$6,066 HKD|-1.3%
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
November 2, 2026
Retailer 14HK$2,244 HKD
Retailer 6HK$2,503 HKD
Retailer 13HK$2,605 HKD
Retailer 3HK$2,785 HKD
Retailer 11HK$2,785 HKD
Retailer 10HK$3,951 HKD
Retailer 8HK$4,582 HKD
Retailer 15HK$4,590 HKD
Retailer 9HK$4,801 HKD
Retailer 2HK$4,906 HKD
Retailer 4HK$6,538 HKD
Retailer 5HK$8,552 HKD
Retailer 12HK$8,952 HKD
Retailer 7HK$10,709 HKD
Retailer 16HK$11,220 HKD
Rare CaratHK$15,221 HKD

34 data points across 16 retailers

20 retailersHK$2,244 HKD to HK$11,522 HKD

A
Cheapest Retailer
-
HK$2,244 HKD
$286 USD
A
Retailer 2
-
HK$2,503 HKD
$319 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,605 HKD
$332 USD
View
A
Retailer 4
-
HK$2,785 HKD
$355 USD
View
Retailer 5
-
HK$2,785 HKD
$355 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
HK$3,951 HKD
£397 GBP
View
A
Retailer 7
-
HK$4,582 HKD
$584 USD
View
A
Retailer 8
-
HK$4,590 HKD
$585 USD
View
A
Retailer 9
-
HK$4,801 HKD
ZAR 9,885 ZAR
View
A
Retailer 10
-
HK$4,849 HKD
$618 USD
View
A
Retailer 11
-
HK$4,906 HKD
£492 GBP
View
Retailer 12
-
HK$6,538 HKD
A$1,282 AUD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
HK$7,132 HKD
$909 USD
View
B+
Retailer 14
-
HK$8,552 HKD
$1,090 USD
View
B+
Retailer 15
-
HK$8,952 HKD
$1,141 USD
View
B+
Retailer 16
-
HK$9,335 HKD
$1,190 USD
View
B+
Retailer 17
-
HK$10,709 HKD
$1,365 USD
View
B+
Retailer 18
-
HK$11,220 HKD
£1,126 GBP
View
B
Retailer 19
-
HK$11,522 HKD
$1,469 USD
View
Most Expensive
Rare Carat
8804_l_645410374 · Oct 21
HK$15,221 HKD
$1,940 USD
View
Price last confirmed 11 days ago
19 more retailers have this diamond
Prices start from HK$2,244 HKDSave up to HK$9,278 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.

A
1.57ct Round
HK$2,244 HKD