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Cushion|Lab Grown|IGI

5.15ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG790622870

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG790622870

Diamond specifications and retailer prices

From $8,832 USD
As of October 31, 2026
Save $27,615 USD (76%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $36,447 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.15ct lab-grown cushion diamond

This 5.15ct 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 LG790622870 or 790622870. Listed at 22 retailers as of October 31, 2026, with prices from $8,832 to $36,447, a $27,615 spread on the same certified stone. Taylor and Hart lists it at $36,447. 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

5.15
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790622870
Dimensions12.07 × 8.96 × 6.00 mm
L/W Ratio1.35
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
12.07 mm8.96 mm5.15 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790622870
Side View
Table 59.0%Crown 36.4°Girdle: MED-STKPavilion 34.5°Culet: NoneDepth 67.0%

Caratlytics Score

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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 31
Current: $19,069 USD|Low: $7,138 USD|High: $55,110 USD|Avg: $20,327 USD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
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Retailer 16
Retailer 17
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Retailer 19
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Retailer 21
Taylor and Hart
November 1, 2026
Retailer 18$8,832 USD
Retailer 9$8,895 USD
Retailer 21$9,088 USD
Retailer 4$9,402 USD
Retailer 5$10,640 USD
Retailer 3$10,754 USD
Retailer 14$11,214 USD
Retailer 17$11,411 USD
Retailer 6$11,827 USD
Retailer 12$14,005 USD
Retailer 10$17,008 USD
Retailer 15$18,908 USD
Retailer 1$19,069 USD
Retailer 11$22,116 USD
Retailer 16$24,118 USD
Retailer 20$26,956 USD
Retailer 2$27,347 USD
Retailer 7$29,595 USD
Retailer 8$29,991 USD
Retailer 13$31,090 USD
Taylor and Hart$36,447 USD
Retailer 19$55,110 USD

37 data points across 22 retailers

22 retailers$8,832 USD to $36,447 USD

A
Cheapest Retailer
-
$8,832 USD
A
Retailer 2
-
$8,895 USD
View
A
Retailer 3
-
$9,088 USD
View
A
Retailer 4
-
$9,402 USD
CA$13,058 CAD
View
A
Retailer 5
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$10,093 USD
View
A
Retailer 6
-
$10,640 USD
View
Retailer 7
-
$10,754 USD
View
Price last confirmed 16 days ago
A
Retailer 8
-
$11,411 USD
View
Final sale: no returns
A
Retailer 9
-
$11,827 USD
View
A
Retailer 10
-
$14,005 USD
£11,027 GBP
View
B+
Retailer 11
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$17,008 USD
£13,392 GBP
View
B+
Retailer 12
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$18,908 USD
€18,008 EUR
View
B+
Retailer 13
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$19,069 USD
£15,015 GBP
View
B+
Retailer 14
-
$22,116 USD
View
B+
Retailer 15
-
$24,118 USD
ZAR 389,635 ZAR
View
B
Retailer 16
-
$26,956 USD
View
B
Retailer 17
-
$27,347 USD
View
B
Retailer 18
-
$29,595 USD
View
B
Retailer 19
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$29,991 USD
View
B
Retailer 20
-
$31,090 USD
View
Most Expensive
B
Taylor and Hart
J9KCFZV · Oct 31
$36,447 USD
View
20 more retailers have this diamond
Prices start from $8,832 USDSave up to $27,615 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
5.15ct Cushion
$8,832 USD