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Cushion|Lab Grown|IGI

5.28ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799670188

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799670188

Diamond specifications and retailer prices

From $8,421 USD
As of October 30, 2026
Save $43,043 USD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $51,464 USD at With Clarity · As of October 30, 2026
View at With Clarity

About this 5.28ct lab-grown cushion diamond

This 5.28ct 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 LG799670188 or 799670188. Listed at 14 retailers as of October 30, 2026, with prices from $8,421 to $51,464, a $43,043 spread on the same certified stone. With Clarity lists it at $51,464. 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

5.28
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799670188
Dimensions11.32 × 9.42 × 6.17 mm
L/W Ratio1.20
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
11.32 mm9.42 mm5.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799670188
Side View
Table 60.0%Crown 36.6°Girdle: MED-STKPavilion 34.8°Culet: NoneDepth 65.5%

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: $8,421 USD|Low: $8,421 USD|High: $52,608 USD|Avg: $20,038 USD|-16.2%
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
With Clarity
October 30, 2026
Retailer 1$8,421 USD
Retailer 5$10,170 USD
Retailer 11$10,355 USD
Retailer 2$10,940 USD
Retailer 4$11,142 USD
Retailer 8$11,446 USD
Retailer 12$16,008 USD
Retailer 7$16,620 USD
Retailer 6$17,365 USD
Retailer 13$17,741 USD
Retailer 10$19,288 USD
Retailer 3$26,717 USD
Retailer 9$30,608 USD
With Clarity$51,464 USD

38 data points across 14 retailers

14 retailers$8,421 USD to $51,464 USD

A
Cheapest Retailer
-
$8,421 USD
A
Retailer 2
-
$10,170 USD
View
A
Retailer 3
-
$10,355 USD
HK$80,900 HKD
View
Retailer 4
-
$10,940 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$11,142 USD
View
A
Retailer 6
-
$11,446 USD
£9,013 GBP
View
A
Retailer 7
-
$16,008 USD
€15,246 EUR
View
A
Retailer 8
-
$16,620 USD
View
B+
Retailer 9
-
$17,365 USD
View
B+
Retailer 10
-
$17,741 USD
£13,969 GBP
View
B+
Retailer 11
-
$19,288 USD
ZAR 311,603 ZAR
View
B+
Retailer 12
-
$26,717 USD
View
B
Retailer 13
-
$30,608 USD
View
Most Expensive
B
With Clarity
799670188 · Oct 30
$51,464 USD
View
13 more retailers have this diamond
Prices start from $8,421 USDSave up to $43,043 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
5.28ct Cushion
$8,421 USD