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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 $488 SGD
$382 USD
As of October 30, 2026
Save $1,506 SGD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,379 SGD 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 29, 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

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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 30
Current: $2,379 SGD|Low: $469 SGD|High: $2,395 SGD|Avg: $1,194 SGD|+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 9$488 SGD
Retailer 14$546 SGD
Retailer 11$606 SGD
Retailer 4$678 SGD
Retailer 7$793 SGD
Retailer 13$920 SGD
Retailer 12$965 SGD
Retailer 2$1,040 SGD
Retailer 10$1,189 SGD
Retailer 6$1,370 SGD
Retailer 3$1,637 SGD
Retailer 8$1,698 SGD
Retailer 5$1,995 SGD
MOH London$2,379 SGD

24 data points across 14 retailers

15 retailers$488 SGD to $1,995 SGD

A
Cheapest Retailer
-
$488 SGD
$382 USD
A
Retailer 2
-
$546 SGD
$427 USD
View
Final sale: no returns
A
Retailer 3
-
$547 SGD
$428 USD
View
A
Retailer 4
-
$606 SGD
$474 USD
View
A
Retailer 5
-
$606 SGD
$474 USD
View
B+
Retailer 6
-
$678 SGD
$530 USD
View
B+
Retailer 7
-
$793 SGD
$620 USD
View
B+
Retailer 8
-
$920 SGD
$720 USD
View
B+
Retailer 9
-
$965 SGD
$755 USD
View
B+
Retailer 10
-
$1,040 SGD
ZAR 13,146 ZAR
View
B
Retailer 11
-
$1,189 SGD
$930 USD
View
B
Retailer 12
-
$1,698 SGD
$1,328 USD
View
B
Retailer 13
-
$1,946 SGD
$1,522 USD
View
B
Retailer 14
-
$1,995 SGD
$1,560 USD
View
Most Expensive
MOH London
LG508122912 · Oct 21
$2,379 SGD
£1,465 GBP
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from $488 SGDSave up to $1,506 SGD

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
$488 SGD