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Oval|Lab Grown|IGI

1.56ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG636421534

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG636421534

Diamond specifications and retailer prices

From $303 USD
As of October 29, 2026
Save $2,387 USD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,690 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.56ct lab-grown oval diamond

This 1.56ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG636421534 or 636421534. Listed at 12 retailers as of October 29, 2026, with prices from $303 to $2,690, a $2,387 spread on the same certified stone. Do Amore Diamonds lists it at $2,690. 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

1.56
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636421534
Dimensions9.66 × 6.46 × 3.92 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.66 mm6.46 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636421534
Side View
Table 60.0%Crown 32.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.7%

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 29
Current: $742 USD|Low: $241 USD|High: $2,690 USD|Avg: $617 USD|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5$303 USD
Retailer 11$339 USD
Retailer 9$351 USD
Retailer 2$375 USD
Retailer 6$375 USD
Retailer 3$420 USD
Retailer 4$530 USD
Retailer 10$711 USD
Retailer 1$742 USD
Retailer 7$1,167 USD
Retailer 8$1,332 USD

43 data points across 11 retailers

12 retailers$303 USD to $2,690 USD

A
Cheapest Retailer
-
$303 USD
A
Retailer 2
-
$339 USD
View
Final sale: no returns
A
Retailer 3
-
$351 USD
View
A
Retailer 4
-
$375 USD
View
A
Retailer 5
-
$375 USD
View
A
Retailer 6
-
$420 USD
View
B+
Retailer 7
-
$530 USD
View
B+
Retailer 8
-
$711 USD
View
B+
Retailer 9
-
$742 USD
£584 GBP
View
B
Retailer 10
-
$1,167 USD
View
B
Retailer 11
-
$1,332 USD
View
Most Expensive
B
Do Amore Diamonds
27-F1060B723 · Oct 29
$2,690 USD
View
11 more retailers have this diamond
Prices start from $303 USDSave up to $2,387 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
1.56ct Oval
$303 USD