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Round|Lab Grown|IGI

1.26ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG683543026

Shape and cutting style on the report: Round brilliant

Certificate IGI LG683543026

Diamond specifications and retailer prices

From $201 USD
As of October 29, 2026
Save $996 USD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,197 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.26ct lab-grown round diamond

This 1.26ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG683543026 or 683543026. Listed at 20 retailers as of October 29, 2026, with prices from $201 to $1,197, a $996 spread on the same certified stone. Reve Diamonds lists it at $1,197. 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

1.26
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683543026
Dimensions6.95 × 6.89 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.95 mm6.89 mm1.26 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683543026
Side View
Table 58.0%Crown 35.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.8%

Caratlytics Score

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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: $456 USD|Low: $191 USD|High: $1,197 USD|Avg: $513 USD|+5.3%
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Retailer 18
Reve Diamonds
November 1, 2026
Retailer 7$201 USD
Retailer 15$224 USD
Retailer 16$233 USD
Retailer 2$249 USD
Retailer 3$249 USD
Retailer 17$410 USD
Retailer 4$433 USD
Retailer 9$455 USD
Retailer 1$456 USD
Retailer 11$474 USD
Retailer 13$487 USD
Retailer 18$496 USD
Retailer 12$525 USD
Retailer 10$620 USD
Retailer 5$670 USD
Retailer 8$801 USD
Retailer 6$854 USD
Retailer 14$1,171 USD
Reve Diamonds$1,197 USD

33 data points across 19 retailers

20 retailers$201 USD to $1,197 USD

A
Cheapest Retailer
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$201 USD
A
Retailer 2
-
$224 USD
View
Final sale: no returns
A
Retailer 3
-
$233 USD
View
A
Retailer 4
-
$249 USD
View
A
Retailer 5
-
$249 USD
View
A
Retailer 6
-
$410 USD
View
B+
Retailer 7
-
$433 USD
View
Retailer 8
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$455 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$456 USD
£359 GBP
View
B+
Retailer 10
-
$474 USD
€451 EUR
View
B+
Retailer 11
-
$487 USD
£383 GBP
View
B+
Retailer 12
-
$496 USD
View
B+
Retailer 13
-
$525 USD
A$808 AUD
View
B+
Retailer 14
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$620 USD
View
B
Retailer 15
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$670 USD
View
Retailer 16
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$794 USD
View
Price last confirmed 41 days ago
B
Retailer 17
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$801 USD
View
B
Retailer 18
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$854 USD
View
B
Retailer 19
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$1,171 USD
£922 GBP
View
Most Expensive
B
Reve Diamonds
AAF9B4E32 · Oct 30
$1,197 USD
View
19 more retailers have this diamond
Prices start from $201 USDSave up to $996 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
1.26ct Round
$201 USD