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Cushion|Lab Grown|IGI

0.51ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG707506817

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

Certificate IGI LG707506817

Diamond specifications and retailer prices

From $151 USD
As of October 28, 2026
Save $838 USD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,414 USD at MOH London · As of October 29, 2026
View at MOH London

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 top-tier cut grade and certified by IGI LG707506817 or 707506817. Listed at 11 retailers as of October 28, 2026, with a 555% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle33.6°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG707506817
Dimensions4.74 × 4.67 × 2.87 mm
L/W Ratio1.01
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
4.74 mm4.67 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG707506817
Side View
Table 65.0%Crown 33.6°Girdle: MED-THKPavilion 36.2°Culet: NoneDepth 61.5%

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 28
Current: $1,414 USD|Low: $109 USD|High: $1,424 USD|Avg: $465 USD|+76.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3$151 USD
Retailer 9$168 USD
Retailer 8$230 USD
Retailer 2$284 USD
Retailer 6$301 USD
Retailer 5$304 USD
Retailer 10$317 USD
Retailer 4$325 USD
Retailer 11$410 USD
Retailer 7$884 USD
Retailer 12$989 USD
MOH London$1,414 USD

35 data points across 12 retailers

11 retailers$151 USD to $989 USD

A
Cheapest Retailer
-
$151 USD
Final sale: no returns
A
Retailer 2
-
$168 USD
View
Returns within 30 days
A
Retailer 3
-
$230 USD
View
Returns within 30 days
B+
Retailer 4
-
$284 USD
£224 GBP
View
Returns within 30 days
B+
Retailer 5
-
$301 USD
€287 EUR
View
Returns within 100 days
B+
Retailer 6
-
$304 USD
ZAR 4,917 ZAR
View
Returns within 7 days
B+
Retailer 7
-
$317 USD
View
Returns within 30 days
B+
Retailer 8
-
$410 USD
View
Returns within 30 days
B
Retailer 9
-
$884 USD
£696 GBP
View
Returns within 30 days
B
Retailer 10
-
$989 USD
View
Returns within 30 days
Most Expensive
B
MOH London
LG707506817 · Oct 29
$1,414 USD
£1,113 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $151 USDSave up to $838 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
$151 USD