CaratHunter
Plans
Oval|Lab Grown|IGI

1.57ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG778614306

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG778614306

Diamond specifications and retailer prices

From HK$2,997 HKD
$382 USD
As of November 1, 2026
Save HK$6,889 HKD (70%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$9,886 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778614306 or 778614306. Listed at 7 retailers as of October 31, 2026, with prices from HK$2,997 to HK$9,886, a HK$6,889 spread on the same certified stone. Brilliant Earth lists it at HK$9,886. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778614306
Dimensions9.30 × 6.47 × 4.00 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.30 mm6.47 mm1.57 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778614306
Side View
Table 61.0%Crown 35.5°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 61.8%

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$9,886 HKD|Low: HK$2,864 HKD|High: HK$12,788 HKD|Avg: HK$5,945 HKD|-22.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 4HK$2,997 HKD
Retailer 3HK$4,037 HKD
Retailer 6HK$4,080 HKD
Retailer 2HK$4,175 HKD
Retailer 7HK$7,588 HKD
Retailer 5HK$8,998 HKD
Brilliant EarthHK$9,886 HKD

40 data points across 7 retailers

7 retailersHK$2,997 HKD to HK$9,886 HKD

B+
Cheapest Retailer
-
HK$2,997 HKD
$382 USD
A
Retailer 2
-
HK$4,037 HKD
€490 EUR
View
A
Retailer 3
-
HK$4,080 HKD
$520 USD
View
A
Retailer 4
-
HK$4,175 HKD
£419 GBP
View
B
Retailer 5
-
HK$7,588 HKD
$967 USD
View
B
Retailer 6
-
HK$8,998 HKD
£903 GBP
View
Most Expensive
B
Brilliant Earth
21027109A · Oct 31
HK$9,886 HKD
$1,260 USD
View
6 more retailers have this diamond
Prices start from HK$2,997 HKDSave up to HK$6,889 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$2,997 HKD