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Radiant|Lab Grown|IGI

1.21ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG784604687

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

Certificate IGI LG784604687

Diamond specifications and retailer prices

From $1,714 SGD
$1,340 USD
As of November 2, 2026
Save $518 SGD (23%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,232 SGD at Blue Nile · As of October 31, 2026
View at Blue Nile

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784604687 or 784604687. Listed at 2 retailers as of October 31, 2026, with prices from $1,714 to $2,232, a $518 spread on the same certified stone. Blue Nile lists it at $2,232. 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 angle41.9°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784604687
Dimensions7.66 × 5.37 × 3.52 mm
L/W Ratio1.43
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
7.66 mm5.37 mm1.21 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784604687
Side View
Table 63.0%Crown 41.9°Girdle: MediumPavilion 35.1°Culet: NoneDepth 65.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,232 SGD|Low: $457 SGD|High: $5,857 SGD|Avg: $2,184 SGD
Blue Nile
Retailer 2
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September 28, 2026
Retailer 12$457 SGD
Retailer 10$818 SGD
Retailer 11$1,074 SGD
Retailer 9$1,426 SGD
Retailer 8$1,432 SGD
Retailer 16$1,459 SGD
Retailer 6$1,683 SGD
Retailer 2$1,714 SGD
Blue Nile$2,232 SGD
Retailer 14$2,239 SGD
Retailer 15$2,428 SGD
Retailer 5$2,431 SGD
Retailer 13$2,822 SGD
Retailer 4$2,900 SGD
Retailer 7$3,764 SGD
Retailer 3$5,857 SGD

2 data points across 16 retailers

2 retailers$1,714 SGD to $2,232 SGD

B+
Cheapest Retailer
-
$1,714 SGD
$1,340 USD
Most Expensive
B
Blue Nile
29886102 · Oct 31
$2,232 SGD
$1,745 USD
View
1 more retailer has this diamond
Prices start from $1,714 SGDSave up to $518 SGD

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+
1.21ct Radiant
$1,714 SGD