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Cushion|Lab Grown|IGI

4.55ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG804636936

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804636936

Diamond specifications and retailer prices

From $4,759 USD
As of November 3, 2026
Save $16,616 USD (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $21,375 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.55ct lab-grown cushion diamond

This 4.55ct 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 LG804636936 or 804636936. Listed at 13 retailers as of October 31, 2026, with prices from $4,759 to $21,375, a $16,616 spread on the same certified stone. Taylor and Hart lists it at $21,375. 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

4.55
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle28.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804636936
Dimensions11.79 × 8.21 × 5.40 mm
L/W Ratio1.44
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
11.79 mm8.21 mm4.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804636936
Side View
Table 57.0%Crown 32.8°Girdle: STK-THKPavilion 28.3°Culet: NoneDepth 65.8%

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: Nov 3
Current: $4,759 USD|Low: $4,759 USD|High: $24,437 USD|Avg: $11,162 USD|-29.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
November 3, 2026
Retailer 1$4,759 USD
Retailer 7$5,250 USD
Retailer 3$5,503 USD
Retailer 4$5,970 USD
Retailer 6$6,318 USD
Retailer 12$6,934 USD
Retailer 10$7,628 USD
Retailer 9$7,653 USD
Retailer 5$9,207 USD
Retailer 8$10,206 USD
Retailer 2$12,706 USD
Retailer 11$13,693 USD
Taylor and Hart$21,375 USD

42 data points across 13 retailers

13 retailers$4,759 USD to $21,375 USD

A
Cheapest Retailer
-
$4,759 USD
Final sale: no returns
A
Retailer 2
-
$5,250 USD
View
A
Retailer 3
-
$5,503 USD
View
Retailer 4
-
$5,970 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
$6,318 USD
£4,975 GBP
View
A
Retailer 6
-
$6,934 USD
£5,460 GBP
View
A
Retailer 7
-
$7,628 USD
View
A
Retailer 8
-
$7,653 USD
View
A
Retailer 9
-
$9,207 USD
View
B+
Retailer 10
-
$10,206 USD
£8,036 GBP
View
B+
Retailer 11
-
$12,706 USD
ZAR 205,264 ZAR
View
B+
Retailer 12
-
$13,693 USD
View
Most Expensive
B
Taylor and Hart
383O6PY · Oct 31
$21,375 USD
View
12 more retailers have this diamond
Prices start from $4,759 USDSave up to $16,616 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
4.55ct Cushion
$4,759 USD