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Oval|Lab Grown|IGI

1.21ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG815698121

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG815698121

Diamond specifications and retailer prices

From $413 NZD
As of November 3, 2026
Save $4,323 NZD (91%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,737 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown oval diamond

This 1.21ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815698121 or 815698121. Listed at 21 retailers as of November 3, 2026, with prices from $413 to $4,737, a $4,323 spread on the same certified stone. Brilliant Earth lists it at $4,737. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815698121
Dimensions8.92 × 6.05 × 3.56 mm
L/W Ratio1.47
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
8.92 mm6.05 mm1.21 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815698121
Side View
Table 61.0%Crown 34.2°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 58.8%

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: Nov 3
Current: $4,737 NZD|Low: $413 NZD|High: $4,949 NZD|Avg: $1,364 NZD|-4.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 15
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Retailer 17
Retailer 18
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Retailer 20
Retailer 21
November 5, 2026
Retailer 18$413 NZD
Retailer 4$461 NZD
Retailer 21$479 NZD
Retailer 9$511 NZD
Retailer 12$525 NZD
Retailer 13$525 NZD
Retailer 16$866 NZD
Retailer 11$899 NZD
Retailer 10$905 NZD
Retailer 14$949 NZD
Retailer 17$954 NZD
Retailer 20$1,352 NZD
Retailer 19$1,644 NZD
Retailer 3$1,650 NZD
Retailer 7$1,701 NZD
Retailer 5$1,737 NZD
Retailer 8$1,838 NZD
Retailer 6$1,999 NZD
Retailer 2$2,045 NZD
Retailer 15$2,794 NZD
Brilliant Earth$4,737 NZD

28 data points across 21 retailers

21 retailers$413 NZD to $4,737 NZD

A
Cheapest Retailer
-
$413 NZD
A
Retailer 2
-
$461 NZD
View
Final sale: no returns
A
Retailer 3
-
$479 NZD
View
A
Retailer 4
-
$511 NZD
View
Retailer 5
-
$525 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$525 NZD
View
A
Retailer 7
-
$866 NZD
View
A
Retailer 8
-
$899 NZD
View
A
Retailer 9
-
$905 NZD
View
A
Retailer 10
-
$949 NZD
View
A
Retailer 11
-
$954 NZD
View
B+
Retailer 12
-
$1,352 NZD
View
B+
Retailer 13
-
$1,644 NZD
View
B+
Retailer 14
-
$1,650 NZD
View
B+
Retailer 15
-
$1,701 NZD
View
B+
Retailer 16
-
$1,737 NZD
View
B+
Retailer 17
-
$1,838 NZD
View
B+
Retailer 18
-
$1,999 NZD
View
B+
Retailer 19
-
$2,045 NZD
View
B
Retailer 20
-
$2,794 NZD
View
Most Expensive
B
Brilliant Earth
21422536A · Nov 4
$4,737 NZD
$2,670 USD
View
20 more retailers have this diamond
Prices start from $413 NZDSave up to $4,323 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 Oval
$413 NZD