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Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG743538298

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

Certificate IGI LG743538298

Diamond specifications and retailer prices

From $299 SGD
$234 USD
As of October 30, 2026
Save $2,117 SGD (88%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $2,416 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG743538298 or 743538298. Listed at 29 retailers as of October 30, 2026, with prices from $299 to $2,416, a $2,117 spread on the same certified stone. Brilliant Earth lists it at $2,416. 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 angle41.1°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743538298
Dimensions7.89 × 5.27 × 3.40 mm
L/W Ratio1.50
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
7.89 mm5.27 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743538298
Side View
Table 62.0%Crown 41.1°Girdle: MediumPavilion 32.6°Culet: NoneDepth 64.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,416 SGD|Low: $299 SGD|High: $3,055 SGD|Avg: $1,032 SGD|-20.9%
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
November 1, 2026
Retailer 15$299 SGD
Retailer 12$332 SGD
Retailer 4$524 SGD
Retailer 9$621 SGD
Retailer 10$636 SGD
Retailer 5$676 SGD
Retailer 8$693 SGD
Retailer 7$810 SGD
Retailer 11$903 SGD
Retailer 6$975 SGD
Retailer 14$1,195 SGD
Retailer 2$1,484 SGD
Retailer 3$1,517 SGD
Retailer 13$2,371 SGD
Brilliant Earth$2,416 SGD

44 data points across 15 retailers

29 retailers$299 SGD to $2,416 SGD

A
Cheapest Retailer
-
$299 SGD
$234 USD
Retailer 2
-
$299 SGD
$234 USD
View
Price last confirmed 24 days ago
Retailer 3
-
$299 SGD
$234 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
$332 SGD
$260 USD
View
Final sale: no returns
Retailer 5
-
$346 SGD
$271 USD
View
Price last confirmed 35 days ago
Retailer 6
-
$366 SGD
$286 USD
View
Price last confirmed 35 days ago
Retailer 7
-
$366 SGD
$286 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$371 SGD
$290 USD
View
Price last confirmed 29 days ago
A
Retailer 9
-
$442 SGD
HK$2,700 HKD
View
A
Retailer 10
-
$524 SGD
$410 USD
View
A
Retailer 11
-
$621 SGD
€463 EUR
View
A
Retailer 12
-
$636 SGD
ZAR 8,041 ZAR
View
A
Retailer 13
-
$676 SGD
$529 USD
View
A
Retailer 14
-
$693 SGD
£427 GBP
View
A
Retailer 15
-
$810 SGD
$634 USD
View
A
Retailer 16
-
$903 SGD
A$1,087 AUD
View
B+
Retailer 17
-
$975 SGD
$763 USD
View
B+
Retailer 18
-
$1,190 SGD
$931 USD
View
Retailer 19
-
$1,190 SGD
$931 USD
View
Price last confirmed 32 days ago
Retailer 20
-
$1,190 SGD
$931 USD
View
Price last confirmed 22 days ago
B+
Retailer 21
-
$1,195 SGD
$935 USD
View
B+
Retailer 22
-
$1,256 SGD
View
B+
Retailer 23
-
$1,257 SGD
$984 USD
View
B+
Retailer 24
-
$1,359 SGD
$1,063 USD
View
B+
Retailer 25
-
$1,484 SGD
£914 GBP
View
Retailer 26
-
$1,517 SGD
A$1,826 AUD
View
Price last confirmed 24 days ago
B
Retailer 27
-
$1,663 SGD
$1,301 USD
View
Retailer 28
-
$2,371 SGD
$1,855 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
16656546A · Oct 31
$2,416 SGD
$1,890 USD
View
28 more retailers have this diamond
Prices start from $299 SGDSave up to $2,117 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.

A
1.21ct Radiant
$299 SGD