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Cushion|Lab Grown|IGI

1.30ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG788624448

Shape and cutting style on the report: Cushion antique brilliant

Certificate IGI LG788624448

Diamond specifications and retailer prices

From $358 USD
As of October 30, 2026
Save $1,877 USD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,235 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.3ct lab-grown cushion diamond

This 1.3ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG788624448 or 788624448. Listed at 15 retailers as of October 27, 2026, with prices from $358 to $2,235, a $1,877 spread on the same certified stone. Queensmith lists it at $2,235. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.30
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle43.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788624448
Dimensions6.82 × 6.30 × 3.88 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizeLarge
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
6.82 mm6.30 mm1.30 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788624448
Side View
Table 58.0%Crown 34.6°Girdle: MED-STKPavilion 43.4°Culet: LargeDepth 61.6%

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: $550 USD|Low: $358 USD|High: $1,610 USD|Avg: $815 USD|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 6$358 USD
Retailer 11$397 USD
Retailer 10$535 USD
Retailer 1$550 USD
Retailer 4$567 USD
Retailer 2$646 USD
Retailer 8$682 USD
Retailer 5$709 USD
Retailer 7$969 USD
Retailer 12$1,274 USD
Retailer 3$1,539 USD
Retailer 9$1,599 USD

42 data points across 12 retailers

15 retailers$358 USD to $2,235 USD

A
Cheapest Retailer
-
$358 USD
Final sale: no returns
A
Retailer 2
-
$397 USD
View
A
Retailer 3
-
$535 USD
View
A
Retailer 4
-
$550 USD
View
B+
Retailer 5
-
$567 USD
View
B+
Retailer 6
-
$646 USD
View
B+
Retailer 7
-
$682 USD
ZAR 11,018 ZAR
View
B+
Retailer 8
-
$709 USD
£558 GBP
View
B
Retailer 9
-
$969 USD
A$1,490 AUD
View
B
Retailer 10
-
$1,274 USD
SGD 1,721 SGD
View
B
Retailer 11
-
$1,321 USD
View
B
Retailer 12
-
$1,539 USD
£1,212 GBP
View
B
Retailer 13
-
$1,577 USD
View
B
Retailer 14
-
$1,599 USD
£1,259 GBP
View
Most Expensive
B
Queensmith
LG788624448 · Oct 27
$2,235 USD
£1,760 GBP
View
14 more retailers have this diamond
Prices start from $358 USDSave up to $1,877 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
1.30ct Cushion
$358 USD