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Cushion|Lab Grown|IGI

1.51ct G IF Cushion Lab Grown Diamond

ID • G/IF • IGI LG816616233

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816616233

Diamond specifications and retailer prices

From €474 EUR
£417 GBP
As of November 1, 2026
Save €1,467 EUR (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,941 EUR at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816616233 or 816616233. Listed at 17 retailers as of October 31, 2026, with prices from €474 to €1,941, a €1,467 spread on the same certified stone. Helzberg Diamonds lists it at €1,941. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816616233
Dimensions8.56 × 5.85 × 3.86 mm
L/W Ratio1.46
Girdle conditionFaceted
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
8.56 mm5.85 mm1.51 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816616233
Side View
Table 59.0%Crown 35.4°Girdle: MED-THKPavilion 36.4°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €1,941 EUR|Low: €448 EUR|High: €1,941 EUR|Avg: €1,132 EUR
Helzberg Diamonds
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 8€448 EUR
Retailer 2€474 EUR
Retailer 3€680 EUR
Retailer 4€710 EUR
Retailer 11€716 EUR
Retailer 10€737 EUR
Retailer 15€771 EUR
Retailer 5€857 EUR
Retailer 13€1,044 EUR
Retailer 16€1,081 EUR
Retailer 6€1,426 EUR
Retailer 7€1,474 EUR
Retailer 17€1,499 EUR
Retailer 12€1,560 EUR
Retailer 14€1,762 EUR
Retailer 9€1,898 EUR
Helzberg Diamonds€1,941 EUR

32 data points across 17 retailers

17 retailers€474 EUR to €1,941 EUR

Retailer 1
-
€448 EUR
$501 USD
Price last confirmed 7 days ago
A
Retailer 2
-
€474 EUR
£417 GBP
View
A
Retailer 3
-
€680 EUR
$760 USD
View
A
Retailer 4
-
€710 EUR
$793 USD
View
A
Retailer 5
-
€716 EUR
View
A
Retailer 6
-
€737 EUR
£648 GBP
View
A
Retailer 7
-
€771 EUR
ZAR 13,911 ZAR
View
A
Retailer 8
-
€857 EUR
$957 USD
View
A
Retailer 9
-
€1,044 EUR
A$1,795 AUD
View
A
Retailer 10
-
€1,081 EUR
$1,208 USD
View
B+
Retailer 11
-
€1,426 EUR
SGD 2,153 SGD
View
B+
Retailer 12
-
€1,474 EUR
$1,646 USD
View
Retailer 13
-
€1,499 EUR
$1,675 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
€1,560 EUR
$1,743 USD
View
B+
Retailer 15
-
€1,762 EUR
£1,550 GBP
View
B+
Retailer 16
-
€1,898 EUR
$2,120 USD
View
Most Expensive
B+
Helzberg Diamonds
ZXZOHMMHMIJJ · Oct 31
€1,941 EUR
$2,169 USD
View
16 more retailers have this diamond
Prices start from €474 EURSave up to €1,467 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 Cushion
€474 EUR