Princess|Lab Grown|IGI

1.21ct F FL Princess Lab Grown Diamond

ID • F/FL • IGI LG825638034

Shape and cutting style on the report: Princess cut

Certificate IGI LG825638034

Diamond specifications and retailer prices

From $420 USD
As of November 4, 2026
Save $1,397 USD (77%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,890 USD at Flawless Fine Jewelry · As of October 9, 2026
View at Flawless Fine Jewelry

About this 1.21ct lab-grown princess diamond

This 1.21ct lab-grown princess sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825638034 or 825638034. Listed at 22 retailers as of November 1, 2026, with a 333% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825638034
Dimensions5.70 × 5.69 × 4.20 mm
L/W Ratio1.00
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
5.70 mm5.69 mm1.21 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825638034
Side View
Table 67.0%Crown 39.2°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 73.8%

Caratlytics Score

How it works →
A
Excellent
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 4
Current: $1,890 USD|Low: $420 USD|High: $2,730 USD|Avg: $1,257 USD
Flawless Fine Jewelry
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 4, 2026
Retailer 15$420 USD
Retailer 11$465 USD
Retailer 8$615 USD
Retailer 7$624 USD
Retailer 14$625 USD
Retailer 9$802 USD
Retailer 2$832 USD
Retailer 13$852 USD
Retailer 5$905 USD
Retailer 12$1,095 USD
Retailer 6$1,385 USD
Retailer 4$1,533 USD
Retailer 3$1,752 USD
Retailer 10$1,817 USD
Flawless Fine Jewelry$1,890 USD

38 data points across 15 retailers

22 retailers$420 USD to $1,817 USD

A
Cheapest Retailer
-
$420 USD
Final sale: no returns
A
Retailer 2
-
$465 USD
View
Retailer 3
-
$500 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$584 USD
View
Price last confirmed 26 days ago
A
Retailer 5
-
$615 USD
View
Retailer 6
-
$624 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$625 USD
View
Retailer 8
-
$638 USD
View
Price last confirmed 40 days ago
Retailer 9
-
$646 USD
View
Price last confirmed 32 days ago
Retailer 10
-
$746 USD
View
Price last confirmed 42 days ago
Retailer 11
-
$780 USD
View
Price last confirmed 48 days ago
B+
Retailer 12
-
$802 USD
View
B+
Retailer 13
-
$832 USD
View
B+
Retailer 14
-
$852 USD
View
B+
Retailer 15
-
$905 USD
View
B+
Retailer 16
-
$1,095 USD
View
Retailer 17
-
$1,385 USD
View
Price last confirmed 17 days ago
B
Retailer 18
-
$1,533 USD
View
Retailer 19
-
$1,700 USD
View
Price last confirmed 35 days ago
B
Retailer 20
-
$1,752 USD
View
B
Retailer 21
-
$1,817 USD
View
Most Expensive
Flawless Fine Jewelry
8A9D2BE13 · Oct 9
$1,890 USD
£1,488 GBP
View
Price last confirmed 25 days ago
21 more retailers have this diamond
Prices start from $420 USDSave up to $1,397 USD

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 Princess
$420 USD