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Cushion|Lab Grown|IGI

4.51ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG837624529

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG837624529

Diamond specifications and retailer prices

From $1,126 USD
HK$8,800 HKD
As of October 30, 2026
Save $4,894 USD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,020 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG837624529 or 837624529. Listed at 18 retailers as of October 29, 2026, with prices from $1,126 to $6,020, a $4,894 spread on the same certified stone. Brilliant Earth lists it at $6,020. 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

4.51
Carat
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837624529
Dimensions11.69 × 8.41 × 5.33 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.69 mm8.41 mm4.51 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837624529
Side View
Table 61.0%Crown 34.6°Girdle: MED-THKPavilion 31.8°Culet: NoneDepth 63.4%

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 30
Current: $6,020 USD|Low: $943 USD|High: $6,020 USD|Avg: $2,718 USD
Brilliant Earth
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
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 3$944 USD
Retailer 10$945 USD
Retailer 2$1,126 USD
Retailer 5$1,180 USD
Retailer 14$1,486 USD
Retailer 15$1,497 USD
Retailer 4$1,577 USD
Retailer 17$2,067 USD
Retailer 18$2,098 USD
Retailer 6$2,481 USD
Retailer 8$3,067 USD
Retailer 7$3,100 USD
Retailer 13$3,269 USD
Retailer 9$3,397 USD
Retailer 16$3,679 USD
Retailer 11$3,804 USD
Retailer 19$4,530 USD
Retailer 12$4,650 USD
Brilliant Earth$6,020 USD

33 data points across 19 retailers

18 retailers$1,126 USD to $6,020 USD

Retailer 1
-
$944 USD
£744 GBP
Price last confirmed 15 days ago
A
Retailer 2
-
$1,126 USD
HK$8,800 HKD
View
A
Retailer 3
-
$1,180 USD
View
A
Retailer 4
-
$1,486 USD
€1,415 EUR
View
A
Retailer 5
-
$1,497 USD
£1,179 GBP
View
B+
Retailer 6
-
$1,577 USD
View
A
Retailer 7
-
$2,067 USD
ZAR 33,385 ZAR
View
Retailer 8
-
$2,098 USD
A$3,228 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$2,481 USD
View
B+
Retailer 10
-
$3,067 USD
View
B+
Retailer 11
-
$3,100 USD
View
B+
Retailer 12
-
$3,269 USD
SGD 4,417 SGD
View
B
Retailer 13
-
$3,397 USD
View
B
Retailer 14
-
$3,679 USD
£2,897 GBP
View
Retailer 15
-
$3,804 USD
A$5,852 AUD
View
Price last confirmed 27 days ago
Retailer 16
-
$4,530 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
$4,650 USD
View
Most Expensive
B
Brilliant Earth
21577269A · Oct 29
$6,020 USD
View
17 more retailers have this diamond
Prices start from $1,126 USDSave up to $4,894 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
4.51ct Cushion
$1,126 USD