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Cushion|Lab Grown|IGI

4.37ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG768629099

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG768629099

Diamond specifications and retailer prices

From $4,485 USD
As of November 2, 2026
Save $15,636 USD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $20,121 USD at Blue Nile · As of November 3, 2026
View at Blue Nile

About this 4.37ct lab-grown cushion diamond

This 4.37ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768629099 or 768629099. Listed at 13 retailers as of November 2, 2026, with prices from $4,485 to $20,121, a $15,636 spread on the same certified stone. Blue Nile lists it at $20,121. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.37
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629099
Dimensions10.73 × 8.89 × 5.87 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizePointed
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
10.73 mm8.89 mm4.37 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629099
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 66.0%

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 2
Current: $20,121 USD|Low: $4,485 USD|High: $22,950 USD|Avg: $11,535 USD|+48.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 10$4,485 USD
Retailer 9$4,878 USD
Retailer 4$6,579 USD
Retailer 2$6,689 USD
Retailer 8$7,992 USD
Retailer 6$8,501 USD
Retailer 11$8,830 USD
Retailer 7$10,777 USD
Retailer 3$11,078 USD
Retailer 12$13,540 USD
Retailer 5$14,998 USD
Retailer 13$18,587 USD
Blue Nile$20,121 USD

38 data points across 13 retailers

13 retailers$4,485 USD to $20,121 USD

A
Cheapest Retailer
-
$4,485 USD
A
Retailer 2
-
$4,878 USD
View
A
Retailer 3
-
$6,579 USD
HK$51,400 HKD
View
A
Retailer 4
-
$6,689 USD
£5,267 GBP
View
A
Retailer 5
-
$7,992 USD
View
A
Retailer 6
-
$8,501 USD
€8,096 EUR
View
A
Retailer 7
-
$8,830 USD
View
B+
Retailer 8
-
$10,777 USD
£8,486 GBP
View
B+
Retailer 9
-
$11,078 USD
ZAR 178,960 ZAR
View
B+
Retailer 10
-
$13,540 USD
View
Retailer 11
-
$14,998 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
$18,587 USD
View
Most Expensive
B
Blue Nile
29977360 · Nov 3
$20,121 USD
View
12 more retailers have this diamond
Prices start from $4,485 USDSave up to $15,636 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
4.37ct Cushion
$4,485 USD