CaratHunter
Plans
Cushion|Lab Grown|IGI

5.51ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG632406758

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG632406758

Diamond specifications and retailer prices

From $2,757 USD
As of October 31, 2026
Save $11,146 USD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $13,903 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.51ct lab-grown cushion diamond

This 5.51ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG632406758 or 632406758. Listed at 18 retailers as of October 30, 2026, with prices from $2,757 to $13,903, a $11,146 spread on the same certified stone. Taylor and Hart lists it at $13,903. 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

5.51
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632406758
Dimensions9.71 × 9.71 × 6.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.71 mm9.71 mm5.51 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632406758
Side View
Table 63.0%Crown 38.9°Girdle: MED-THKPavilion 36.1°Culet: NoneDepth 66.9%

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 31
Current: $6,271 USD|Low: $3,459 USD|High: $21,270 USD|Avg: $7,266 USD|+0.3%
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
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 7$3,459 USD
Retailer 2$3,462 USD
Retailer 15$3,586 USD
Retailer 16$3,745 USD
Retailer 13$4,308 USD
Retailer 6$5,068 USD
Retailer 9$5,240 USD
Retailer 8$6,050 USD
Retailer 1$6,271 USD
Retailer 10$8,041 USD
Retailer 12$8,091 USD
Retailer 4$8,988 USD
Retailer 3$9,873 USD
Retailer 11$10,047 USD
Retailer 5$12,920 USD
Retailer 14$21,270 USD

43 data points across 16 retailers

18 retailers$2,757 USD to $13,903 USD

A
Cheapest Retailer
-
$2,757 USD
B+
Retailer 2
-
$3,459 USD
View
B+
Retailer 3
-
$3,462 USD
View
Final sale: no returns
Retailer 4
-
$3,586 USD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
$3,745 USD
View
Retailer 6
-
$4,308 USD
£3,393 GBP
View
Price last confirmed 14 days ago
B
Retailer 7
-
$5,068 USD
View
B+
Retailer 8
-
$5,240 USD
£4,126 GBP
View
B
Retailer 9
-
$6,050 USD
£4,764 GBP
View
B
Retailer 10
-
$6,271 USD
A$9,647 AUD
View
B
Retailer 11
-
$8,041 USD
ZAR 129,908 ZAR
View
Retailer 12
-
$8,091 USD
A$12,447 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$8,988 USD
View
B
Retailer 14
-
$9,873 USD
View
B
Retailer 15
-
$10,047 USD
£7,911 GBP
View
B
Retailer 16
-
$12,920 USD
View
Most Expensive
B
Taylor and Hart
0WHYVRQ · Oct 30
$13,903 USD
View
16 more retailers have this diamond
Prices start from $2,757 USDSave up to $11,146 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
5.51ct Cushion
$2,757 USD