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Cushion|Lab Grown|IGI

6.86ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG778629585

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG778629585

Diamond specifications and retailer prices

From $1,725 USD
As of November 2, 2026
Save $7,485 USD (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $9,210 USD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 6.86ct lab-grown cushion diamond

This 6.86ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778629585 or 778629585. Listed at 23 retailers as of November 2, 2026, with prices from $1,725 to $9,210, a $7,485 spread on the same certified stone. Do Amore Diamonds lists it at $9,210. 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

6.86
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778629585
Dimensions12.53 × 9.58 × 6.29 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.53 mm9.58 mm6.86 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778629585
Side View
Table 65.0%Crown 39°Girdle: STK-VTKPavilion 34.3°Culet: NoneDepth 65.7%

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 2
Current: $9,210 USD|Low: $1,390 USD|High: $10,460 USD|Avg: $3,663 USD|-12.0%
Do Amore Diamonds
Retailer 2
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Retailer 22
November 2, 2026
Retailer 10$1,390 USD
Retailer 6$1,725 USD
Retailer 2$1,805 USD
Retailer 21$1,931 USD
Retailer 4$2,048 USD
Retailer 13$2,420 USD
Retailer 20$2,450 USD
Retailer 3$2,516 USD
Retailer 17$2,609 USD
Retailer 22$2,763 USD
Retailer 16$3,176 USD
Retailer 18$3,317 USD
Retailer 5$4,145 USD
Retailer 7$4,185 USD
Retailer 19$4,921 USD
Retailer 12$5,098 USD
Retailer 11$5,315 USD
Retailer 8$5,933 USD
Retailer 9$6,064 USD
Retailer 15$6,716 USD
Retailer 14$6,940 USD
Do Amore Diamonds$9,210 USD

25 data points across 22 retailers

23 retailers$1,725 USD to $9,210 USD

Retailer 1
-
$1,390 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$1,725 USD
View
A
Retailer 3
-
$1,805 USD
£1,421 GBP
View
A
Retailer 4
-
$1,931 USD
View
A
Retailer 5
-
$2,048 USD
HK$16,000 HKD
View
B+
Retailer 6
-
$2,420 USD
£1,906 GBP
View
B+
Retailer 7
-
$2,450 USD
View
A
Retailer 8
-
$2,516 USD
View
B+
Retailer 9
-
$2,609 USD
€2,485 EUR
View
B+
Retailer 10
-
$2,763 USD
View
B+
Retailer 11
-
$3,176 USD
A$4,886 AUD
View
B+
Retailer 12
-
$3,317 USD
ZAR 53,579 ZAR
View
Retailer 13
-
$3,848 USD
View
Price last confirmed 18 days ago
B
Retailer 14
-
$4,145 USD
£3,264 GBP
View
B+
Retailer 15
-
$4,185 USD
View
B
Retailer 16
-
$4,921 USD
£3,875 GBP
View
Retailer 17
-
$5,098 USD
A$7,843 AUD
View
Price last confirmed 28 days ago
Retailer 18
-
$5,315 USD
View
Price last confirmed 18 days ago
B
Retailer 19
-
$5,933 USD
SGD 8,017 SGD
View
B
Retailer 20
-
$6,064 USD
View
Retailer 21
-
$6,716 USD
View
Price last confirmed 9 days ago
Retailer 22
-
$6,940 USD
View
Price last confirmed 17 days ago
Most Expensive
B
Do Amore Diamonds
27-1D207034A · Nov 2
$9,210 USD
View
22 more retailers have this diamond
Prices start from $1,725 USDSave up to $7,485 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
6.86ct Cushion
$1,725 USD