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Radiant|Lab Grown|IGI

1.81ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG729574225

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

Certificate IGI LG729574225

Diamond specifications and retailer prices

From $3,598 NZD
$2,021 USD
As of October 29, 2026
Save $5,340 NZD (60%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $8,938 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.81ct lab-grown radiant diamond

This 1.81ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729574225 or 729574225. Listed at 3 retailers as of October 29, 2026, with prices from $3,598 to $8,938, a $5,340 spread on the same certified stone. Do Amore Diamonds lists it at $8,938. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729574225
Dimensions8.64 × 6.12 × 3.98 mm
L/W Ratio1.41
Culet sizeLong
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
8.64 mm6.12 mm1.81 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729574225
Side View
Table 65.0%Crown 42.2°Girdle: MediumPavilion 34.3°Culet: LNGDepth 65.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $8,938 NZD|Low: $961 NZD|High: $8,938 NZD|Avg: $3,792 NZD
Do Amore Diamonds
Retailer 2
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October 18, 2026
Retailer 10$961 NZD
Retailer 9$1,699 NZD
Retailer 14$1,718 NZD
Retailer 3$2,197 NZD
Retailer 12$2,419 NZD
Retailer 13$3,276 NZD
Retailer 7$3,598 NZD
Retailer 6$4,206 NZD
Retailer 11$4,271 NZD
Retailer 8$4,613 NZD
Retailer 2$4,976 NZD
Retailer 5$5,033 NZD
Retailer 4$5,258 NZD
Do Amore Diamonds$8,938 NZD

4 data points across 14 retailers

3 retailers$3,598 NZD to $8,938 NZD

B+
Cheapest Retailer
-
$3,598 NZD
$2,021 USD
Retailer 2
-
$4,976 NZD
$2,795 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Do Amore Diamonds
24-567-0535 · Oct 29
$8,938 NZD
$5,020 USD
View
2 more retailers have this diamond
Prices start from $3,598 NZDSave up to $5,340 NZD

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.

B+
1.81ct Radiant
$3,598 NZD