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Radiant|Lab Grown|IGI

1.56ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG646481423

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

Certificate IGI LG646481423

Diamond specifications and retailer prices

From £183 GBP
$245 USD
As of October 30, 2026
Save £814 GBP (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £997 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG646481423 or 646481423. Listed at 22 retailers as of October 30, 2026, with prices from £183 to £997, a £814 spread on the same certified stone. Reve Diamonds lists it at £997. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG646481423
Dimensions8.11 × 5.74 × 3.89 mm
L/W Ratio1.41
Culet sizePointed
Top View
8.11 mm5.74 mm1.56 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG646481423
Side View
Table 66.0%Crown 44.4°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
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: £430 GBP|Low: £183 GBP|High: £1,010 GBP|Avg: £496 GBP|+16.7%
Retailer 1
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Retailer 21
Reve Diamonds
October 31, 2026
Retailer 2£183 GBP
Retailer 11£204 GBP
Retailer 17£212 GBP
Retailer 4£226 GBP
Retailer 6£226 GBP
Retailer 21£253 GBP
Retailer 14£351 GBP
Retailer 20£360 GBP
Retailer 13£381 GBP
Retailer 15£389 GBP
Retailer 10£415 GBP
Retailer 1£430 GBP
Retailer 8£471 GBP
Retailer 16£528 GBP
Retailer 3£728 GBP
Retailer 18£731 GBP
Retailer 5£767 GBP
Retailer 19£802 GBP
Retailer 9£891 GBP
Retailer 7£896 GBP
Retailer 12£913 GBP
Reve Diamonds£997 GBP

32 data points across 22 retailers

22 retailers£183 GBP to £997 GBP

A
Cheapest Retailer
-
£183 GBP
$245 USD
A
Retailer 2
-
£204 GBP
$273 USD
View
Final sale: no returns
A
Retailer 3
-
£212 GBP
$284 USD
View
A
Retailer 4
-
£226 GBP
$303 USD
View
A
Retailer 5
-
£226 GBP
$303 USD
View
Retailer 6
-
£253 GBP
View
Price last confirmed 14 days ago
Retailer 7
-
£360 GBP
€459 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
£381 GBP
$511 USD
View
A
Retailer 9
-
£389 GBP
ZAR 8,421 ZAR
View
A
Retailer 10
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£415 GBP
$556 USD
View
B+
Retailer 11
-
£430 GBP
View
A
Retailer 12
-
£471 GBP
$631 USD
View
B+
Retailer 13
-
£528 GBP
A$1,088 AUD
View
B
Retailer 14
-
£728 GBP
$975 USD
View
B
Retailer 15
-
£731 GBP
$979 USD
View
B
Retailer 16
-
£746 GBP
View
B+
Retailer 17
-
£767 GBP
$1,027 USD
View
Retailer 18
-
£802 GBP
$1,075 USD
View
Price last confirmed 12 days ago
B
Retailer 19
-
£891 GBP
$1,194 USD
View
B
Retailer 20
-
£896 GBP
$1,201 USD
View
B
Retailer 21
-
£913 GBP
View
Most Expensive
B
Reve Diamonds
4810AECDF · Oct 30
£997 GBP
$1,336 USD
View
21 more retailers have this diamond
Prices start from £183 GBPSave up to £814 GBP

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
£183 GBP