CaratHunter
Plans
Cushion|Lab Grown|IGI

1.23ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG836620499

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836620499

Diamond specifications and retailer prices

From $588 SGD
$460 USD
As of November 1, 2026
Save $2,455 SGD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,043 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion 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 LG836620499 or 836620499. Listed at 14 retailers as of October 31, 2026, with prices from $588 to $3,043, a $2,455 spread on the same certified stone. Brilliant Earth lists it at $3,043. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620499
Dimensions7.83 × 5.25 × 3.62 mm
L/W Ratio1.49
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
7.83 mm5.25 mm1.23 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620499
Side View
Table 60.0%Crown 34°Girdle: MED-THKPavilion 34.2°Culet: NoneDepth 69.0%

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 1
Current: $3,043 SGD|Low: $588 SGD|High: $3,544 SGD|Avg: $1,622 SGD|-10.5%
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
November 1, 2026
Retailer 13$588 SGD
Retailer 10$633 SGD
Retailer 8$825 SGD
Retailer 7$995 SGD
Retailer 3$1,002 SGD
Retailer 2$1,040 SGD
Retailer 12$1,078 SGD
Retailer 9$1,088 SGD
Retailer 4$1,523 SGD
Retailer 5$2,039 SGD
Retailer 14$2,081 SGD
Retailer 6$2,435 SGD
Retailer 11$2,478 SGD
Brilliant Earth$3,043 SGD

39 data points across 14 retailers

14 retailers$588 SGD to $3,043 SGD

A
Cheapest Retailer
-
$588 SGD
$460 USD
Final sale: no returns
Retailer 2
-
$633 SGD
$495 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$825 SGD
$645 USD
View
A
Retailer 4
-
$995 SGD
€741 EUR
View
A
Retailer 5
-
$1,002 SGD
$784 USD
View
A
Retailer 6
-
$1,040 SGD
£640 GBP
View
A
Retailer 7
-
$1,078 SGD
$843 USD
View
A
Retailer 8
-
$1,088 SGD
ZAR 13,747 ZAR
View
B+
Retailer 9
-
$1,523 SGD
$1,191 USD
View
Retailer 10
-
$2,039 SGD
$1,595 USD
View
Price last confirmed 17 days ago
B+
Retailer 11
-
$2,081 SGD
$1,628 USD
View
Retailer 12
-
$2,435 SGD
£1,500 GBP
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$2,478 SGD
£1,526 GBP
View
Most Expensive
B
Brilliant Earth
21589747A · Oct 31
$3,043 SGD
$2,380 USD
View
13 more retailers have this diamond
Prices start from $588 SGDSave up to $2,455 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 Cushion
$588 SGD