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Oval|Lab Grown|IGI

1.21ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG816611188

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816611188

Diamond specifications and retailer prices

From $433 NZD
As of November 3, 2026
Save $3,062 NZD (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,495 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 LG816611188 or 816611188. Listed at 20 retailers as of November 3, 2026, with prices from $433 to $3,495, a $3,062 spread on the same certified stone. Brilliant Earth lists it at $3,495. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816611188
Dimensions8.70 × 6.00 × 3.76 mm
L/W Ratio1.45
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
8.70 mm6.00 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816611188
Side View
Table 58.0%Crown 35.4°Girdle: THN-STKPavilion 41.1°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $3,495 NZD|Low: $433 NZD|High: $6,138 NZD|Avg: $1,530 NZD|-43.1%
Brilliant Earth
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
Retailer 18
Retailer 19
Retailer 20
November 5, 2026
Retailer 9$433 NZD
Retailer 7$484 NZD
Retailer 6$502 NZD
Retailer 14$522 NZD
Retailer 11$573 NZD
Retailer 20$754 NZD
Retailer 18$889 NZD
Retailer 17$924 NZD
Retailer 2$976 NZD
Retailer 12$1,011 NZD
Retailer 10$1,093 NZD
Retailer 8$1,173 NZD
Retailer 19$1,334 NZD
Retailer 5$1,359 NZD
Retailer 4$1,724 NZD
Retailer 16$1,767 NZD
Retailer 13$2,083 NZD
Retailer 3$2,365 NZD
Retailer 15$2,794 NZD
Brilliant Earth$3,495 NZD

33 data points across 20 retailers

20 retailers$433 NZD to $3,495 NZD

A+
Cheapest Retailer
-
$433 NZD
A
Retailer 2
-
$484 NZD
View
Final sale: no returns
A
Retailer 3
-
$502 NZD
View
A
Retailer 4
-
$522 NZD
View
Retailer 5
-
$573 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$754 NZD
View
A
Retailer 7
-
$889 NZD
View
A
Retailer 8
-
$924 NZD
View
A
Retailer 9
-
$976 NZD
View
Retailer 10
-
$1,011 NZD
View
Price last confirmed 11 days ago
A
Retailer 11
-
$1,093 NZD
View
B+
Retailer 12
-
$1,173 NZD
View
B+
Retailer 13
-
$1,334 NZD
View
B+
Retailer 14
-
$1,359 NZD
View
B+
Retailer 15
-
$1,724 NZD
View
B+
Retailer 16
-
$1,767 NZD
View
B+
Retailer 17
-
$2,083 NZD
View
B
Retailer 18
-
$2,365 NZD
View
B
Retailer 19
-
$2,794 NZD
View
Most Expensive
B
Brilliant Earth
21018694A · Nov 4
$3,495 NZD
$1,970 USD
View
19 more retailers have this diamond
Prices start from $433 NZDSave up to $3,062 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
$433 NZD