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Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG660492735

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

Certificate IGI LG660492735

Diamond specifications and retailer prices

From $376 NZD
As of November 4, 2026
Save $3,225 NZD (90%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $3,601 NZD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG660492735 or 660492735. Listed at 26 retailers as of November 4, 2026, with prices from $376 to $3,601, a $3,225 spread on the same certified stone. Do Amore Diamonds lists it at $3,601. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660492735
Dimensions7.69 × 5.26 × 3.42 mm
L/W Ratio1.46
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
7.69 mm5.26 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660492735
Side View
Table 64.0%Crown 43.4°Girdle: MED-STKPavilion 33.7°Culet: NoneDepth 65.0%

Caratlytics Score

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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: Nov 4
Current: $960 NZD|Low: $376 NZD|High: $4,116 NZD|Avg: $1,469 NZD|+3.6%
Retailer 1
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
November 5, 2026
Retailer 2$376 NZD
Retailer 15$435 NZD
Retailer 4$727 NZD
Retailer 11$862 NZD
Retailer 10$887 NZD
Retailer 6$896 NZD
Retailer 1$960 NZD
Retailer 7$1,052 NZD
Retailer 9$1,258 NZD
Retailer 14$1,503 NZD
Retailer 8$2,054 NZD
Retailer 5$2,104 NZD
Retailer 3$2,118 NZD
Retailer 12$3,122 NZD
Retailer 13$3,273 NZD

45 data points across 15 retailers

26 retailers$376 NZD to $3,601 NZD

A
Cheapest Retailer
-
$376 NZD
A
Retailer 2
-
$435 NZD
View
Final sale: no returns
Retailer 3
-
$436 NZD
View
Price last confirmed 39 days ago
Retailer 4
-
$459 NZD
View
Price last confirmed 37 days ago
Retailer 5
-
$465 NZD
View
Price last confirmed 33 days ago
A
Retailer 6
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$726 NZD
View
A
Retailer 7
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$727 NZD
View
A
Retailer 8
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$862 NZD
View
A
Retailer 9
-
$887 NZD
View
A
Retailer 10
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$896 NZD
View
A
Retailer 11
-
$960 NZD
View
A
Retailer 12
-
$1,052 NZD
View
A
Retailer 13
-
$1,123 NZD
View
A
Retailer 14
-
$1,258 NZD
View
B+
Retailer 15
-
$1,503 NZD
View
B+
Retailer 16
-
$1,652 NZD
View
Retailer 17
-
$1,652 NZD
View
Price last confirmed 26 days ago
Retailer 18
-
$1,652 NZD
View
Price last confirmed 36 days ago
B+
Retailer 19
-
$1,955 NZD
View
B+
Retailer 20
-
$2,054 NZD
View
B+
Retailer 21
-
$2,104 NZD
View
Retailer 22
-
$2,118 NZD
View
Price last confirmed 28 days ago
B
Retailer 23
-
$2,182 NZD
View
B
Retailer 24
-
$3,122 NZD
View
Retailer 25
-
$3,273 NZD
View
Price last confirmed 18 days ago
Most Expensive
B
Do Amore Diamonds
27-80DE62B69 · Nov 4
$3,601 NZD
$2,030 USD
View
25 more retailers have this diamond
Prices start from $376 NZDSave up to $3,225 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.

A
1.21ct Radiant
$376 NZD