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Cushion|Lab Grown|IGI

5.11ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG760565912

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG760565912

Diamond specifications and retailer prices

From $6,112 USD
As of November 1, 2026
Save $33,833 USD (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $39,945 USD at Mervis Diamond Importers · As of October 31, 2026
View at Mervis Diamond Importers

About this 5.11ct lab-grown cushion diamond

This 5.11ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG760565912 or 760565912. Listed at 24 retailers as of October 31, 2026, with prices from $6,112 to $39,945, a $33,833 spread on the same certified stone. Mervis Diamond Importers lists it at $39,945. 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

5.11
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760565912
Dimensions10.19 × 9.87 × 6.57 mm
L/W Ratio1.03
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
10.19 mm9.87 mm5.11 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760565912
Side View
Table 63.0%Crown 37.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 66.6%

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: Nov 1
Current: $39,945 USD|Low: $6,112 USD|High: $51,260 USD|Avg: $17,360 USD|-12.2%
Mervis Diamond Importers
Retailer 2
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Retailer 22
November 2, 2026
Retailer 10$6,112 USD
Retailer 12$6,332 USD
Retailer 22$6,430 USD
Retailer 4$7,325 USD
Retailer 15$8,271 USD
Retailer 2$8,685 USD
Retailer 3$8,850 USD
Retailer 5$9,134 USD
Retailer 11$9,952 USD
Retailer 18$10,939 USD
Retailer 19$14,200 USD
Retailer 13$14,223 USD
Retailer 16$14,614 USD
Retailer 6$17,428 USD
Retailer 8$22,206 USD
Retailer 17$23,880 USD
Retailer 9$24,374 USD
Retailer 14$27,134 USD
Retailer 20$27,600 USD
Retailer 21$27,600 USD
Retailer 7$37,560 USD
Mervis Diamond Importers$39,945 USD

33 data points across 22 retailers

24 retailers$6,112 USD to $39,945 USD

A
Cheapest Retailer
-
$6,112 USD
Final sale: no returns
Retailer 2
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$6,332 USD
View
Price last confirmed 16 days ago
A
Retailer 3
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$6,430 USD
View
A
Retailer 4
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$7,325 USD
View
Retailer 5
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$8,271 USD
£6,513 GBP
View
Price last confirmed 27 days ago
A
Retailer 6
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$8,685 USD
£6,839 GBP
View
Retailer 7
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$8,850 USD
View
Price last confirmed 14 days ago
A
Retailer 8
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$9,134 USD
View
A
Retailer 9
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$9,952 USD
£7,836 GBP
View
A
Retailer 10
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$10,939 USD
€10,418 EUR
View
A
Retailer 11
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$14,200 USD
ZAR 229,400 ZAR
View
A
Retailer 12
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$14,223 USD
£11,199 GBP
View
B+
Retailer 13
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$14,614 USD
A$22,483 AUD
View
B+
Retailer 14
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$17,428 USD
View
B+
Retailer 15
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$17,470 USD
View
B+
Retailer 16
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$19,202 USD
View
B+
Retailer 17
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$22,206 USD
View
B+
Retailer 18
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$23,880 USD
View
B+
Retailer 19
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$24,374 USD
View
B
Retailer 20
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$27,134 USD
View
B
Retailer 21
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$27,600 USD
View
B
Retailer 22
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$27,600 USD
View
B
Retailer 23
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$37,560 USD
View
Most Expensive
B
Mervis Diamond Importers
1988607957 · Oct 31
$39,945 USD
View
23 more retailers have this diamond
Prices start from $6,112 USDSave up to $33,833 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
5.11ct Cushion
$6,112 USD