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Radiant|Lab Grown|IGI

1.51ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG778659554

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

Certificate IGI LG778659554

Diamond specifications and retailer prices

From €183 EUR
$205 USD
As of October 30, 2026
Save €886 EUR (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,070 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778659554 or 778659554. Listed at 17 retailers as of October 26, 2026, with prices from €183 to €1,070, a €886 spread on the same certified stone. MOH London lists it at €1,070. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778659554
Dimensions8.20 × 5.60 × 3.83 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.20 mm5.60 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778659554
Side View
Table 65.0%Crown 42.4°Girdle: MED-STKPavilion 36.4°Culet: NoneDepth 68.4%

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: €1,070 EUR|Low: €178 EUR|High: €1,070 EUR|Avg: €520 EUR|+14.9%
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
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 16€183 EUR
Retailer 15€204 EUR
Retailer 10€212 EUR
Retailer 5€227 EUR
Retailer 8€228 EUR
Retailer 2€392 EUR
Retailer 17€393 EUR
Retailer 13€439 EUR
Retailer 14€524 EUR
Retailer 7€532 EUR
Retailer 12€591 EUR
Retailer 11€730 EUR
Retailer 3€739 EUR
Retailer 6€765 EUR
Retailer 4€778 EUR
Retailer 9€886 EUR
MOH London€1,070 EUR

35 data points across 17 retailers

17 retailers€183 EUR to €1,070 EUR

A
Cheapest Retailer
-
€183 EUR
$205 USD
A
Retailer 2
-
€204 EUR
$228 USD
View
Final sale: no returns
A
Retailer 3
-
€212 EUR
$237 USD
View
A
Retailer 4
-
€227 EUR
$254 USD
View
Retailer 5
-
€228 EUR
$255 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
€392 EUR
ZAR 7,079 ZAR
View
B+
Retailer 7
-
€393 EUR
$439 USD
View
A
Retailer 8
-
€439 EUR
$491 USD
View
A
Retailer 9
-
€524 EUR
$585 USD
View
A
Retailer 10
-
€532 EUR
A$915 AUD
View
B+
Retailer 11
-
€591 EUR
$660 USD
View
B+
Retailer 12
-
€730 EUR
$816 USD
View
B+
Retailer 13
-
€739 EUR
SGD 1,116 SGD
View
B+
Retailer 14
-
€765 EUR
$855 USD
View
B+
Retailer 15
-
€778 EUR
$869 USD
View
B+
Retailer 16
-
€886 EUR
$990 USD
View
Most Expensive
B
MOH London
LG778659554 · Oct 26
€1,070 EUR
£941 GBP
View
16 more retailers have this diamond
Prices start from €183 EURSave up to €886 EUR

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
1.51ct Radiant
€183 EUR