Cushion|Lab Grown|IGI

0.51ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG838654643

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG838654643

Diamond specifications and retailer prices

From $258 USD
As of October 28, 2026
Save $336 USD (57%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $952 USD at Reve Diamonds · As of October 2, 2026
View at Reve Diamonds

About this 0.51ct lab-grown cushion diamond

This 0.51ct lab-grown cushion sits in the half to three-quarter carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG838654643 or 838654643. Listed at 10 retailers as of October 27, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.4°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838654643
Dimensions5.13 × 4.12 × 2.96 mm
L/W Ratio1.25
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.13 mm4.12 mm0.51 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG838654643
Side View
Table 65.0%Crown 37.4°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 71.8%

Caratlytics Score

How it works →
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 28
Current: $503 USD|Low: $139 USD|High: $952 USD|Avg: $415 USD|+8.7%
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
Reve Diamonds
October 19, 2026
Retailer 13$139 USD
Retailer 8$258 USD
Retailer 12$266 USD
Retailer 2$269 USD
Retailer 5$305 USD
Retailer 7$305 USD
Retailer 9$320 USD
Retailer 11$384 USD
Retailer 10$410 USD
Retailer 3$470 USD
Retailer 1$503 USD
Retailer 4$552 USD
Retailer 6$594 USD
Reve Diamonds$952 USD

12 data points across 14 retailers

10 retailers$258 USD to $594 USD

A
Cheapest Retailer
-
$258 USD
Returns within 30 days
A
Retailer 2
-
$266 USD
View
Price last confirmed 26 days ago
Returns within 30 days
B+
Retailer 3
-
$305 USD
View
Returns within 3 days
B+
Retailer 4
-
$320 USD
View
Price last confirmed 24 days ago
Returns within 30 days
B
Retailer 5
-
$384 USD
£302 GBP
View
Price last confirmed 24 days ago
Returns within 30 days
B+
Retailer 6
-
$410 USD
View
Price last confirmed 24 days ago
Returns within 30 days
B
Retailer 7
-
$503 USD
CA$699 CAD
View
Returns within 14 days
B
Retailer 8
-
$552 USD
View
Price last confirmed 26 days ago
Returns within 90 days
B
Retailer 9
-
$594 USD
View
Returns within 30 days
Most Expensive
B
Reve Diamonds
5B66F9093 · Oct 2
$952 USD
View
Price last confirmed 27 days ago
Returns within 30 days
9 more retailers have this diamond
Prices start from $258 USDSave up to $336 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
0.51ct Cushion
$258 USD