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Round|Lab Grown|IGI

1.21ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG656491314

Shape and cutting style on the report: Round brilliant

Certificate IGI LG656491314

Diamond specifications and retailer prices

From $272 SGD
As of November 3, 2026
Save $1,849 SGD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,121 SGD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG656491314 or 656491314. Listed at 22 retailers as of November 3, 2026, with a 679% 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
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656491314
Dimensions6.90 × 6.92 × 4.13 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.90 mm6.92 mm1.21 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656491314
Side View
Table 60.0%Crown 33.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.8%

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: $2,121 SGD|Low: $272 SGD|High: $2,121 SGD|Avg: $817 SGD
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
November 5, 2026
Retailer 10$284 SGD
Retailer 3$305 SGD
Retailer 9$316 SGD
Retailer 7$337 SGD
Retailer 4$454 SGD
Retailer 17$569 SGD
Retailer 15$581 SGD
Retailer 2$616 SGD
Retailer 18$648 SGD
Retailer 14$826 SGD
Retailer 5$1,049 SGD
Retailer 6$1,085 SGD
Retailer 13$1,089 SGD
Retailer 8$1,151 SGD
Retailer 16$1,153 SGD
Retailer 11$1,348 SGD
Retailer 12$1,463 SGD
Brilliant Earth$2,121 SGD

43 data points across 18 retailers

22 retailers$272 SGD to $2,121 SGD

A
Cheapest Retailer
-
$272 SGD
Retailer 2
-
$284 SGD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$305 SGD
View
Final sale: no returns
Retailer 4
-
$316 SGD
View
Price last confirmed 9 days ago
Retailer 5
-
$337 SGD
View
Price last confirmed 9 days ago
Retailer 6
-
$351 SGD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
$454 SGD
View
A
Retailer 8
-
$569 SGD
View
A
Retailer 9
-
$581 SGD
View
A
Retailer 10
-
$616 SGD
View
A
Retailer 11
-
$648 SGD
View
B+
Retailer 12
-
$826 SGD
View
B+
Retailer 13
-
$887 SGD
View
B+
Retailer 14
-
$1,049 SGD
View
Retailer 15
-
$1,085 SGD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$1,089 SGD
View
B
Retailer 17
-
$1,151 SGD
View
B
Retailer 18
-
$1,153 SGD
View
B+
Retailer 19
-
$1,348 SGD
View
B
Retailer 20
-
$1,463 SGD
View
B
Retailer 21
-
$2,121 SGD
View
Most Expensive
Brilliant Earth
20628276A · Oct 26
$2,121 SGD
$1,660 USD
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $272 SGDSave up to $1,849 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 Round
$272 SGD