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Radiant|Lab Grown|IGI

1.56ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG496117891

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

Certificate IGI LG496117891

Diamond specifications and retailer prices

From ₹15,002 INR
$158 USD
As of October 30, 2026
Save ₹71,820 INR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: ₹1,10,469 INR at Rare Carat · As of September 6, 2026
View at Rare Carat

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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG496117891 or 496117891. Listed at 15 retailers as of October 26, 2026, with a 479% 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
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle26.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496117891
Dimensions7.88 × 5.75 × 3.63 mm
L/W Ratio1.37
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
7.88 mm5.75 mm1.56 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496117891
Side View
Table 63.5%Crown 39.8°Girdle: STK-THKPavilion 26.7°Culet: NoneDepth 63.1%

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: ₹1,10,469 INR|Low: ₹14,337 INR|High: ₹1,10,469 INR|Avg: ₹46,486 INR
Rare Carat
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
Retailer 15
Retailer 16
October 31, 2026
Retailer 14₹15,002 INR
Retailer 12₹17,376 INR
Retailer 13₹18,515 INR
Retailer 16₹18,515 INR
Retailer 6₹20,452 INR
Retailer 2₹32,301 INR
Retailer 9₹33,515 INR
Retailer 3₹33,707 INR
Retailer 5₹47,950 INR
Retailer 4₹50,798 INR
Retailer 8₹59,553 INR
Retailer 15₹59,629 INR
Retailer 11₹62,952 INR
Retailer 7₹64,867 INR
Retailer 10₹86,822 INR
Rare Carat₹1,10,469 INR

42 data points across 16 retailers

15 retailers₹15,002 INR to ₹86,822 INR

A
Cheapest Retailer
-
₹15,002 INR
$158 USD
B+
Retailer 2
-
₹17,376 INR
$183 USD
View
B+
Retailer 3
-
₹18,515 INR
$195 USD
View
A
Retailer 4
-
₹18,515 INR
$195 USD
View
B+
Retailer 5
-
₹32,301 INR
£268 GBP
View
B+
Retailer 6
-
₹33,515 INR
£278 GBP
View
B
Retailer 7
-
₹33,707 INR
$355 USD
View
B+
Retailer 8
-
₹47,950 INR
$505 USD
View
B+
Retailer 9
-
₹50,798 INR
$535 USD
View
B
Retailer 10
-
₹59,553 INR
HK$4,900 HKD
View
B+
Retailer 11
-
₹59,629 INR
$628 USD
View
B
Retailer 12
-
₹62,952 INR
$663 USD
View
B
Retailer 13
-
₹64,867 INR
$683 USD
View
B
Retailer 14
-
₹86,822 INR
£720 GBP
View
Most Expensive
Rare Carat
KCV0711 · Sep 6
₹1,10,469 INR
$1,163 USD
View
Price last confirmed 56 days ago
14 more retailers have this diamond
Prices start from ₹15,002 INRSave up to ₹71,820 INR

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
₹15,002 INR