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Oval|Lab Grown|IGI

1.56ct G SI1 Oval Lab Grown Diamond

EX • G/SI1 • IGI LG818660685

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818660685

Diamond specifications and retailer prices

From HK$10,042 HKD
$1,280 USD
As of October 31, 2026
10 retailers carry this diamond
Most expensive: HK$10,042 HKD at Brilliant Earth
View at Brilliant Earth

About this 1.56ct lab-grown oval diamond

This 1.56ct 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 LG818660685 or 818660685. Listed at 10 retailers as of October 31, 2026. 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

1.56
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818660685
Dimensions9.57 × 6.55 × 4.02 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.57 mm6.55 mm1.56 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818660685
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: HK$10,042 HKD|Low: HK$1,844 HKD|High: HK$10,199 HKD|Avg: HK$5,275 HKD|+1.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 5, 2026
Retailer 7HK$1,899 HKD
Retailer 10HK$2,103 HKD
Retailer 6HK$3,601 HKD
Retailer 4HK$3,812 HKD
Retailer 5HK$4,001 HKD
Retailer 3HK$5,013 HKD
Retailer 9HK$6,845 HKD
Retailer 11HK$7,184 HKD
Retailer 2HK$7,375 HKD
Retailer 8HK$8,539 HKD
Brilliant EarthHK$10,042 HKD

15 data points across 11 retailers

10 retailers

Retailer 1
-
HK$1,632 HKD
$208 USD
Price last confirmed 28 days ago
Retailer 2
-
HK$1,946 HKD
$248 USD
View
Price last confirmed 38 days ago
Retailer 3
-
HK$2,103 HKD
$268 USD
View
Price last confirmed 28 days ago
Retailer 4
-
HK$3,601 HKD
$459 USD
View
Price last confirmed 28 days ago
Retailer 5
-
HK$5,013 HKD
$639 USD
View
Price last confirmed 30 days ago
Retailer 6
-
HK$6,771 HKD
$863 USD
View
Price last confirmed 29 days ago
Retailer 7
-
HK$6,845 HKD
SGD 1,179 SGD
View
Price last confirmed 29 days ago
Retailer 8
-
HK$7,375 HKD
$940 USD
View
Price last confirmed 28 days ago
Retailer 9
-
HK$8,539 HKD
£857 GBP
View
Price last confirmed 29 days ago
Most Expensive
B
Brilliant Earth
21492487A · Oct 31
HK$10,042 HKD
$1,280 USD
View
9 more retailers have this diamond

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
1.56ct Oval
HK$10,042 HKD