Cushion|Lab Grown|IGI

2.54ct G SI1 Cushion Lab Grown Diamond

GD • G/SI1 • IGI LG715508541

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG715508541

Diamond specifications and retailer prices

From $508 USD
£400 GBP
As of October 30, 2026
Save $825 USD (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,862 USD at Rare Carat · As of September 23, 2026
View at Rare Carat

About this 2.54ct lab-grown cushion diamond

This 2.54ct lab-grown cushion sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG715508541 or 715508541. Listed at 13 retailers as of October 30, 2026, with a 163% 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

2.54
Carat
G
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG715508541
Dimensions9.36 × 6.30 × 4.85 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.36 mm6.30 mm2.54 ctG / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG715508541
Side View
Table 61.0%Crown 40.8°Girdle: MED-VTKPavilion 36.7°Culet: NoneDepth 77.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,862 USD|Low: $401 USD|High: $1,862 USD|Avg: $901 USD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11$401 USD
Retailer 7$508 USD
Retailer 9$512 USD
Retailer 6$622 USD
Retailer 8$625 USD
Retailer 3$699 USD
Retailer 4$710 USD
Retailer 2$741 USD
Retailer 5$1,161 USD
Retailer 10$1,615 USD
Rare Carat$1,862 USD

34 data points across 11 retailers

13 retailers$508 USD to $1,333 USD

Retailer 1
-
$401 USD
Price last confirmed 21 days ago
B+
Retailer 2
-
$508 USD
£400 GBP
View
B+
Retailer 3
-
$512 USD
HK$4,000 HKD
View
B
Retailer 4
-
$622 USD
View
B+
Retailer 5
-
$625 USD
View
B+
Retailer 6
-
$699 USD
View
B+
Retailer 7
-
$710 USD
£559 GBP
View
B+
Retailer 8
-
$741 USD
€706 EUR
View
B+
Retailer 9
-
$832 USD
View
B
Retailer 10
-
$1,161 USD
View
B
Retailer 11
-
$1,333 USD
View
Retailer 12
-
$1,615 USD
£1,272 GBP
View
Price last confirmed 14 days ago
Most Expensive
Rare Carat
335415085UB715 · Sep 23
$1,862 USD
View
Price last confirmed 40 days ago
12 more retailers have this diamond
Prices start from $508 USDSave up to $825 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.

B+
2.54ct Cushion
$508 USD