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Radiant|Lab Grown|IGI

1.56ct I VS1 Radiant Lab Grown Diamond

VG • I/VS1 • IGI LG508122912

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG508122912

Diamond specifications and retailer prices

From HK$2,997 HKD
$382 USD
As of October 30, 2026
Save HK$9,245 HKD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$14,597 HKD at MOH London · As of October 21, 2026
View at MOH London

About this 1.56ct lab-grown radiant diamond

This 1.56ct lab-grown radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG508122912 or 508122912. Listed at 15 retailers as of October 30, 2026, with a 308% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.56
Carat
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508122912
Dimensions8.05 × 5.67 × 3.92 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.05 mm5.67 mm1.56 ctI / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508122912
Side View
Table 63.0%Crown 43.8°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 69.1%

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: Oct 30
Current: HK$14,597 HKD|Low: HK$2,879 HKD|High: HK$14,697 HKD|Avg: HK$7,327 HKD|+0.5%
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
Retailer 14
October 28, 2026
Retailer 9HK$2,997 HKD
Retailer 14HK$3,350 HKD
Retailer 11HK$3,719 HKD
Retailer 4HK$4,158 HKD
Retailer 7HK$4,864 HKD
Retailer 13HK$5,649 HKD
Retailer 12HK$5,924 HKD
Retailer 2HK$6,384 HKD
Retailer 10HK$7,297 HKD
Retailer 6HK$8,410 HKD
Retailer 3HK$10,044 HKD
Retailer 8HK$10,419 HKD
Retailer 5HK$12,242 HKD
MOH LondonHK$14,597 HKD

24 data points across 14 retailers

15 retailersHK$2,997 HKD to HK$12,242 HKD

A
Cheapest Retailer
-
HK$2,997 HKD
$382 USD
A
Retailer 2
-
HK$3,350 HKD
$427 USD
View
Final sale: no returns
A
Retailer 3
-
HK$3,358 HKD
$428 USD
View
Retailer 4
-
HK$3,719 HKD
$474 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
HK$3,719 HKD
$474 USD
View
B+
Retailer 6
-
HK$4,158 HKD
$530 USD
View
B+
Retailer 7
-
HK$4,864 HKD
$620 USD
View
B+
Retailer 8
-
HK$5,649 HKD
$720 USD
View
B+
Retailer 9
-
HK$5,924 HKD
$755 USD
View
B+
Retailer 10
-
HK$6,384 HKD
ZAR 13,146 ZAR
View
B
Retailer 11
-
HK$7,297 HKD
$930 USD
View
B
Retailer 12
-
HK$10,419 HKD
$1,328 USD
View
B
Retailer 13
-
HK$11,941 HKD
$1,522 USD
View
B
Retailer 14
-
HK$12,242 HKD
$1,560 USD
View
Most Expensive
MOH London
LG508122912 · Oct 21
HK$14,597 HKD
£1,465 GBP
View
Price last confirmed 11 days ago
14 more retailers have this diamond
Prices start from HK$2,997 HKDSave up to HK$9,245 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
1.56ct Radiant
HK$2,997 HKD