Cushion|Lab Grown|IGI

1.23ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG837628359

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG837628359

Diamond specifications and retailer prices

From $628 USD
As of October 30, 2026
Save $1,752 USD (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,380 USD at Yadav Diamonds · As of October 30, 2026
View at Yadav Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG837628359 or 837628359. Listed at 12 retailers as of October 30, 2026, with prices from $628 to $2,380, a $1,752 spread on the same certified stone. Yadav Diamonds lists it at $2,380. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837628359
Dimensions7.43 × 5.76 × 3.83 mm
L/W Ratio1.29
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
7.43 mm5.76 mm1.23 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837628359
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 66.5%

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: Oct 30
Current: $1,398 USD|Low: $393 USD|High: $2,380 USD|Avg: $1,082 USD
Retailer 1
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
Yadav Diamonds
October 8, 2026
Retailer 9$393 USD
Retailer 16$413 USD
Retailer 5$550 USD
Retailer 6$594 USD
Retailer 17$610 USD
Retailer 13$628 USD
Retailer 18$676 USD
Retailer 7$698 USD
Retailer 2$815 USD
Retailer 12$850 USD
Retailer 8$1,319 USD
Retailer 10$1,396 USD
Retailer 1$1,398 USD
Retailer 4$1,575 USD
Retailer 3$1,607 USD
Retailer 11$1,651 USD
Retailer 15$1,723 USD
Retailer 14$2,230 USD
Yadav Diamonds$2,380 USD

11 data points across 19 retailers

12 retailers$628 USD to $2,380 USD

Retailer 1
-
$413 USD
£325 GBP
Price last confirmed 28 days ago
Retailer 2
-
$594 USD
View
Price last confirmed 28 days ago
A
Retailer 3
-
$628 USD
View
Retailer 4
-
$676 USD
ZAR 10,928 ZAR
View
Price last confirmed 30 days ago
A
Retailer 5
-
$850 USD
View
Retailer 6
-
$1,319 USD
View
Price last confirmed 29 days ago
B+
Retailer 7
-
$1,398 USD
CA$1,942 CAD
View
Retailer 8
-
$1,607 USD
£1,265 GBP
View
Price last confirmed 30 days ago
B
Retailer 9
-
$1,651 USD
View
Retailer 10
-
$1,723 USD
A$2,651 AUD
View
Price last confirmed 28 days ago
Retailer 11
-
$2,230 USD
View
Price last confirmed 27 days ago
Most Expensive
B
Yadav Diamonds
13312131 · Oct 30
$2,380 USD
View
11 more retailers have this diamond
Prices start from $628 USDSave up to $1,752 USD

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
$628 USD