Cushion|Lab Grown|IGI

1.51ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG818655823

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818655823

Diamond specifications and retailer prices

From $934 USD
HK$7,300 HKD
As of October 31, 2026
Save $2,265 USD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,199 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818655823 or 818655823. Listed at 11 retailers as of October 31, 2026, with prices from $934 to $3,199, a $2,265 spread on the same certified stone. MOH London lists it at $3,199. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818655823
Dimensions7.64 × 6.10 × 4.00 mm
L/W Ratio1.25
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
7.64 mm6.10 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818655823
Side View
Table 60.0%Crown 36.6°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 65.6%

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 31
Current: $3,199 USD|Low: $934 USD|High: $3,734 USD|Avg: $2,003 USD|-13.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$934 USD
Retailer 8$1,130 USD
Retailer 9$1,145 USD
Retailer 2$1,204 USD
Retailer 4$1,238 USD
Retailer 5$1,383 USD
Retailer 7$1,927 USD
Retailer 11$2,590 USD
Retailer 3$2,620 USD
Retailer 10$2,846 USD
MOH London$3,199 USD

42 data points across 11 retailers

11 retailers$934 USD to $3,199 USD

A
Cheapest Retailer
-
$934 USD
HK$7,300 HKD
A
Retailer 2
-
$1,130 USD
View
A
Retailer 3
-
$1,145 USD
View
A
Retailer 4
-
$1,204 USD
£948 GBP
View
A
Retailer 5
-
$1,238 USD
€1,179 EUR
View
Retailer 6
-
$1,383 USD
ZAR 22,340 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$1,927 USD
View
B
Retailer 8
-
$2,590 USD
View
B
Retailer 9
-
$2,620 USD
View
B
Retailer 10
-
$2,846 USD
View
Most Expensive
B
MOH London
LG818655823 · Nov 1
$3,199 USD
£2,519 GBP
View
10 more retailers have this diamond
Prices start from $934 USDSave up to $2,265 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
1.51ct Cushion
$934 USD