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Radiant|Lab Grown|IGI

1.56ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG689522824

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

Certificate IGI LG689522824

Diamond specifications and retailer prices

From £162 GBP
$217 USD
As of October 30, 2026
Save £1,025 GBP (86%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,187 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 very-good cut grade and certified by IGI LG689522824 or 689522824. Listed at 25 retailers as of October 30, 2026, with prices from £162 to £1,187, a £1,025 spread on the same certified stone. Brilliant Earth lists it at £1,187. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle52.4°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689522824
Dimensions6.06 × 6.06 × 6.72 mm
L/W Ratio1.00
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
6.06 mm6.06 mm1.56 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689522824
Side View
Table 71.0%Crown 52.4°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 71.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £1,187 GBP|Low: £181 GBP|High: £1,351 GBP|Avg: £569 GBP|-12.2%
Brilliant Earth
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
October 30, 2026
Retailer 8£181 GBP
Retailer 2£284 GBP
Retailer 14£324 GBP
Retailer 12£344 GBP
Retailer 9£372 GBP
Retailer 6£392 GBP
Retailer 13£468 GBP
Retailer 5£644 GBP
Retailer 15£646 GBP
Retailer 4£682 GBP
Retailer 10£731 GBP
Retailer 7£785 GBP
Retailer 3£806 GBP
Retailer 11£808 GBP
Brilliant Earth£1,187 GBP

43 data points across 15 retailers

25 retailers£162 GBP to £1,187 GBP

A
Cheapest Retailer
-
£162 GBP
$217 USD
A
Retailer 2
-
£181 GBP
$243 USD
View
Final sale: no returns
A
Retailer 3
-
£187 GBP
$251 USD
View
A
Retailer 4
-
£200 GBP
$268 USD
View
A
Retailer 5
-
£200 GBP
$268 USD
View
A
Retailer 6
-
£229 GBP
HK$2,400 HKD
View
B+
Retailer 7
-
£284 GBP
$380 USD
View
Retailer 8
-
£324 GBP
€413 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
£344 GBP
ZAR 7,451 ZAR
View
A
Retailer 10
-
£372 GBP
View
B+
Retailer 11
-
£392 GBP
$525 USD
View
B+
Retailer 12
-
£407 GBP
$545 USD
View
B+
Retailer 13
-
£468 GBP
A$965 AUD
View
B+
Retailer 14
-
£644 GBP
$863 USD
View
B+
Retailer 15
-
£646 GBP
$866 USD
View
B+
Retailer 16
-
£651 GBP
SGD 1,179 SGD
View
B
Retailer 17
-
£682 GBP
$914 USD
View
B
Retailer 18
-
£684 GBP
$916 USD
View
B+
Retailer 19
-
£731 GBP
A$1,507 AUD
View
B
Retailer 20
-
£785 GBP
View
Retailer 21
-
£806 GBP
$1,080 USD
View
Price last confirmed 25 days ago
B
Retailer 22
-
£808 GBP
View
B
Retailer 23
-
£816 GBP
$1,093 USD
View
B
Retailer 24
-
£930 GBP
$1,246 USD
View
Most Expensive
B
Brilliant Earth
17805270A · Oct 30
£1,187 GBP
$1,590 USD
View
24 more retailers have this diamond
Prices start from £162 GBPSave up to £1,025 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
£162 GBP