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Cushion|Lab Grown|IGI

5.55ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846663131

Shape and cutting style on the report: Round cornered rectangular mixed cut

Certificate IGI LG846663131

Diamond specifications and retailer prices

From $9,540 USD
As of October 29, 2026
Save $31,573 USD (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $41,113 USD at With Clarity · As of October 30, 2026
View at With Clarity

About this 5.55ct lab-grown cushion diamond

This 5.55ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663131 or 846663131. Listed at 9 retailers as of October 29, 2026, with prices from $9,540 to $41,113, a $31,573 spread on the same certified stone. With Clarity lists it at $41,113. 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

5.55
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663131
Dimensions11.61 × 8.13 × 5.36 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeLarge
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
11.61 mm8.13 mm5.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663131
Side View
Table 63.0%Crown 31.7°Girdle: STK-THKPavilion 40.1°Culet: LargeDepth 65.9%

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: Oct 29
Current: $18,750 USD|Low: $9,540 USD|High: $59,145 USD|Avg: $21,409 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 30, 2026
Retailer 3$9,540 USD
Retailer 7$12,277 USD
Retailer 8$12,589 USD
Retailer 4$17,616 USD
Retailer 2$18,023 USD
Retailer 6$18,567 USD
Retailer 1$18,750 USD
Retailer 5$20,980 USD
With Clarity$41,113 USD

6 data points across 9 retailers

9 retailers$9,540 USD to $41,113 USD

A
Cheapest Retailer
-
$9,540 USD
A
Retailer 2
-
$12,277 USD
View
A
Retailer 3
-
$12,589 USD
View
B+
Retailer 4
-
$17,616 USD
£13,871 GBP
View
B+
Retailer 5
-
$18,023 USD
€17,165 EUR
View
B+
Retailer 6
-
$18,567 USD
View
B+
Retailer 7
-
$18,750 USD
View
B+
Retailer 8
-
$20,980 USD
View
Most Expensive
B
With Clarity
846663131 · Oct 30
$41,113 USD
View
8 more retailers have this diamond
Prices start from $9,540 USDSave up to $31,573 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
5.55ct Cushion
$9,540 USD