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Oval|Lab Grown|IGI

1.57ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG577390712

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG577390712

Diamond specifications and retailer prices

From HK$1,710 HKD
$218 USD
As of October 29, 2026
Save HK$6,819 HKD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$8,529 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.57ct lab-grown oval diamond

This 1.57ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG577390712 or 577390712. Listed at 13 retailers as of October 29, 2026, with prices from HK$1,710 to HK$8,529, a HK$6,819 spread on the same certified stone. MOH London lists it at HK$8,529. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.57
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577390712
Dimensions9.12 × 6.60 × 4.13 mm
L/W Ratio1.38
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
9.12 mm6.60 mm1.57 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577390712
Side View
Table 62.0%Crown 36.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

Caratlytics Score

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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 29
Current: HK$8,529 HKD|Low: HK$1,640 HKD|High: HK$9,391 HKD|Avg: HK$4,253 HKD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 8HK$1,710 HKD
Retailer 4HK$1,977 HKD
Retailer 3HK$2,118 HKD
Retailer 10HK$2,118 HKD
Retailer 2HK$2,718 HKD
Retailer 11HK$3,625 HKD
Retailer 12HK$3,852 HKD
Retailer 6HK$3,929 HKD
Retailer 5HK$4,715 HKD
Retailer 13HK$6,802 HKD
Retailer 7HK$6,826 HKD
Retailer 9HK$7,336 HKD
MOH LondonHK$8,529 HKD

44 data points across 13 retailers

13 retailersHK$1,710 HKD to HK$8,529 HKD

A
Cheapest Retailer
-
HK$1,710 HKD
$218 USD
A
Retailer 2
-
HK$1,977 HKD
$252 USD
View
A
Retailer 3
-
HK$2,118 HKD
$270 USD
View
A
Retailer 4
-
HK$2,118 HKD
$270 USD
View
A
Retailer 5
-
HK$2,718 HKD
£273 GBP
View
B+
Retailer 6
-
HK$3,625 HKD
$462 USD
View
A
Retailer 7
-
HK$3,852 HKD
$491 USD
View
A
Retailer 8
-
HK$3,929 HKD
£394 GBP
View
B+
Retailer 9
-
HK$4,715 HKD
$601 USD
View
B
Retailer 10
-
HK$6,802 HKD
$867 USD
View
B
Retailer 11
-
HK$6,826 HKD
$870 USD
View
Retailer 12
-
HK$7,336 HKD
$935 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
LG577390712 · Oct 29
HK$8,529 HKD
£856 GBP
View
12 more retailers have this diamond
Prices start from HK$1,710 HKDSave up to HK$6,819 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 Oval
HK$1,710 HKD