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Cushion|Lab Grown|IGI

1.27ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG645412130

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG645412130

Diamond specifications and retailer prices

From $255 USD
As of October 28, 2026
Save $1,095 USD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,350 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.27ct lab-grown cushion diamond

This 1.27ct 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 LG645412130 or 645412130. Listed at 16 retailers as of October 28, 2026, with prices from $255 to $1,350, a $1,095 spread on the same certified stone. Brilliant Earth lists it at $1,350. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645412130
Dimensions6.26 × 6.19 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.26 mm6.19 mm1.27 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645412130
Side View
Table 63.0%Crown 37.1°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 67.9%

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: $1,350 USD|Low: $231 USD|High: $1,350 USD|Avg: $690 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
October 29, 2026
Retailer 16$255 USD
Retailer 15$284 USD
Retailer 17$382 USD
Retailer 14$436 USD
Retailer 6$482 USD
Retailer 12$487 USD
Retailer 4$514 USD
Retailer 11$527 USD
Retailer 3$601 USD
Retailer 13$692 USD
Retailer 10$725 USD
Retailer 8$787 USD
Retailer 9$930 USD
Retailer 5$964 USD
Retailer 2$1,143 USD
Retailer 7$1,285 USD
Brilliant Earth$1,350 USD

38 data points across 17 retailers

16 retailers$255 USD to $1,350 USD

A
Cheapest Retailer
-
$255 USD
Final sale: no returns
A
Retailer 2
-
$284 USD
View
A
Retailer 3
-
$382 USD
£301 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
$436 USD
€415 EUR
View
A
Retailer 5
-
$482 USD
View
A
Retailer 6
-
$487 USD
ZAR 7,870 ZAR
View
A
Retailer 7
-
$514 USD
View
A
Retailer 8
-
$527 USD
£415 GBP
View
B+
Retailer 9
-
$601 USD
View
B+
Retailer 10
-
$692 USD
A$1,064 AUD
View
B+
Retailer 11
-
$725 USD
View
B+
Retailer 12
-
$787 USD
View
B
Retailer 13
-
$964 USD
View
B
Retailer 14
-
$1,143 USD
£900 GBP
View
B
Retailer 15
-
$1,285 USD
View
Most Expensive
B
Brilliant Earth
11353422A · Oct 28
$1,350 USD
View
15 more retailers have this diamond
Prices start from $255 USDSave up to $1,095 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
1.27ct Cushion
$255 USD