Radiant|Lab Grown|IGI

1.55ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG838642599

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

Certificate IGI LG838642599

Diamond specifications and retailer prices

From £188 GBP
$250 USD
As of October 27, 2026
Save £1,230 GBP (87%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,418 GBP at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838642599 or 838642599. Listed at 23 retailers as of October 27, 2026, with prices from £188 to £1,418, a £1,230 spread on the same certified stone. Helzberg Diamonds lists it at £1,418. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle31.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838642599
Dimensions5.70 × 7.62 × 3.97 mm
L/W Ratio1.34
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.70 mm7.62 mm1.55 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838642599
Side View
Table 68.0%Crown 43.8°Girdle: MED-STKPavilion 31.4°Culet: NoneDepth 69.6%

Caratlytics Score

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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 27
Current: £1,418 GBP|Low: £188 GBP|High: £1,418 GBP|Avg: £560 GBP
Helzberg Diamonds
Retailer 2
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Retailer 23
October 29, 2026
Retailer 22£188 GBP
Retailer 12£210 GBP
Retailer 20£218 GBP
Retailer 3£233 GBP
Retailer 5£233 GBP
Retailer 7£260 GBP
Retailer 21£273 GBP
Retailer 14£314 GBP
Retailer 17£399 GBP
Retailer 9£408 GBP
Retailer 19£416 GBP
Retailer 2£442 GBP
Retailer 11£478 GBP
Retailer 18£542 GBP
Retailer 4£714 GBP
Retailer 16£716 GBP
Retailer 23£747 GBP
Retailer 15£764 GBP
Retailer 8£786 GBP
Retailer 10£915 GBP
Retailer 13£937 GBP
Retailer 6£1,015 GBP
Helzberg Diamonds£1,418 GBP

23 data points across 23 retailers

23 retailers£188 GBP to £1,418 GBP

A
Cheapest Retailer
-
£188 GBP
$250 USD
A
Retailer 2
-
£210 GBP
$279 USD
View
Final sale: no returns
A
Retailer 3
-
£218 GBP
$290 USD
View
A
Retailer 4
-
£233 GBP
$310 USD
View
A
Retailer 5
-
£233 GBP
$310 USD
View
A
Retailer 6
-
£260 GBP
HK$2,700 HKD
View
Retailer 7
-
£273 GBP
View
Price last confirmed 12 days ago
B+
Retailer 8
-
£314 GBP
$418 USD
View
A
Retailer 9
-
£399 GBP
ZAR 8,594 ZAR
View
A
Retailer 10
-
£408 GBP
$543 USD
View
A
Retailer 11
-
£416 GBP
€528 EUR
View
A
Retailer 12
-
£442 GBP
View
B+
Retailer 13
-
£478 GBP
$636 USD
View
B+
Retailer 14
-
£542 GBP
A$1,110 AUD
View
B+
Retailer 15
-
£714 GBP
$951 USD
View
B+
Retailer 16
-
£716 GBP
$954 USD
View
B+
Retailer 17
-
£747 GBP
$995 USD
View
B
Retailer 18
-
£764 GBP
SGD 1,375 SGD
View
B
Retailer 19
-
£786 GBP
$1,047 USD
View
B
Retailer 20
-
£915 GBP
$1,219 USD
View
B
Retailer 21
-
£937 GBP
View
B
Retailer 22
-
£1,015 GBP
$1,352 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJOMKILPP · Oct 29
£1,418 GBP
$1,888 USD
View
22 more retailers have this diamond
Prices start from £188 GBPSave up to £1,230 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
1.55ct Radiant
£188 GBP