CaratHunter
Plans
Cushion|Lab Grown|IGI

5.12ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG756590887

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

Certificate IGI LG756590887

Diamond specifications and retailer prices

From $1,098 USD
As of October 29, 2026
Save $7,612 USD (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,710 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 5.12ct lab-grown cushion diamond

This 5.12ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG756590887 or 756590887. Listed at 10 retailers as of October 29, 2026, with prices from $1,098 to $8,710, a $7,612 spread on the same certified stone. Do Amore Diamonds lists it at $8,710. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.12
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756590887
Dimensions9.88 × 9.79 × 6.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.88 mm9.79 mm5.12 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756590887
Side View
Table 62.0%Crown 34.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 67.6%

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 29
Current: $1,820 USD|Low: $783 USD|High: $8,710 USD|Avg: $1,918 USD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 7$1,098 USD
Retailer 5$1,138 USD
Retailer 3$1,370 USD
Retailer 6$1,562 USD
Retailer 4$1,603 USD
Retailer 8$1,701 USD
Retailer 1$1,820 USD
Retailer 2$4,266 USD

41 data points across 8 retailers

10 retailers$1,098 USD to $8,710 USD

A
Cheapest Retailer
-
$1,098 USD
Final sale: no returns
Retailer 2
-
$1,138 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$1,370 USD
View
B+
Retailer 4
-
$1,562 USD
View
A
Retailer 5
-
$1,603 USD
View
B+
Retailer 6
-
$1,701 USD
View
B+
Retailer 7
-
$1,820 USD
£1,433 GBP
View
B
Retailer 8
-
$4,266 USD
£3,359 GBP
View
B
Retailer 9
-
$4,466 USD
View
Most Expensive
B
Do Amore Diamonds
27-5414AD7CC · Oct 29
$8,710 USD
View
9 more retailers have this diamond
Prices start from $1,098 USDSave up to $7,612 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
5.12ct Cushion
$1,098 USD