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Round|Lab Grown|IGI

1.23ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG816613126

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816613126

Diamond specifications and retailer prices

From $353 SGD
$276 USD
As of October 29, 2026
Save $1,897 SGD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,250 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816613126 or 816613126. Listed at 20 retailers as of October 29, 2026, with prices from $353 to $2,250, a $1,897 spread on the same certified stone. Brilliant Earth lists it at $2,250. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613126
Dimensions6.97 × 6.93 × 4.19 mm
L/W Ratio1.01
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
6.97 mm6.93 mm1.23 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613126
Side View
Table 57.0%Crown 33.3°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.2%

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: Oct 29
Current: $2,250 SGD|Low: $339 SGD|High: $2,250 SGD|Avg: $923 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
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Retailer 19
Retailer 20
October 30, 2026
Retailer 20$353 SGD
Retailer 10$394 SGD
Retailer 19$409 SGD
Retailer 12$437 SGD
Retailer 18$437 SGD
Retailer 6$616 SGD
Retailer 16$620 SGD
Retailer 13$719 SGD
Retailer 15$751 SGD
Retailer 2$767 SGD
Retailer 7$853 SGD
Retailer 5$873 SGD
Retailer 8$972 SGD
Retailer 3$1,342 SGD
Retailer 17$1,405 SGD
Retailer 9$1,470 SGD
Retailer 14$1,762 SGD
Retailer 11$1,835 SGD
Retailer 4$1,962 SGD
Brilliant Earth$2,250 SGD

37 data points across 20 retailers

20 retailers$353 SGD to $2,250 SGD

A
Cheapest Retailer
-
$353 SGD
$276 USD
A
Retailer 2
-
$394 SGD
$308 USD
View
Final sale: no returns
A
Retailer 3
-
$409 SGD
$320 USD
View
A
Retailer 4
-
$437 SGD
$342 USD
View
Retailer 5
-
$437 SGD
$342 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$616 SGD
$482 USD
View
A
Retailer 7
-
$620 SGD
$485 USD
View
A
Retailer 8
-
$719 SGD
€536 EUR
View
A
Retailer 9
-
$751 SGD
ZAR 9,490 ZAR
View
A
Retailer 10
-
$767 SGD
£473 GBP
View
B+
Retailer 11
-
$853 SGD
$667 USD
View
B+
Retailer 12
-
$873 SGD
$683 USD
View
B+
Retailer 13
-
$972 SGD
$760 USD
View
B
Retailer 14
-
$1,342 SGD
$1,050 USD
View
B+
Retailer 15
-
$1,405 SGD
$1,099 USD
View
B
Retailer 16
-
$1,470 SGD
$1,150 USD
View
B+
Retailer 17
-
$1,762 SGD
£1,085 GBP
View
B
Retailer 18
-
$1,835 SGD
$1,435 USD
View
Retailer 19
-
$1,962 SGD
$1,535 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21018332A · Oct 29
$2,250 SGD
$1,760 USD
View
19 more retailers have this diamond
Prices start from $353 SGDSave up to $1,897 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
1.23ct Round
$353 SGD