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Round|Lab Grown|IGI

1.23ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG642428460

Shape and cutting style on the report: Round brilliant

Certificate IGI LG642428460

Diamond specifications and retailer prices

From $236 USD
As of October 29, 2026
Save $2,024 USD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,260 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG642428460 or 642428460. Listed at 22 retailers as of October 29, 2026, with prices from $236 to $2,260, a $2,024 spread on the same certified stone. Do Amore Diamonds lists it at $2,260. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG642428460
Dimensions6.90 × 6.87 × 4.22 mm
L/W Ratio1.00
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
6.90 mm6.87 mm1.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG642428460
Side View
Table 56.0%Crown 34.5°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.3%

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: $613 USD|Low: $226 USD|High: $1,307 USD|Avg: $616 USD|+3.9%
Retailer 1
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
October 29, 2026
Retailer 15$236 USD
Retailer 5$263 USD
Retailer 2$273 USD
Retailer 3$292 USD
Retailer 13$292 USD
Retailer 9$524 USD
Retailer 12$554 USD
Retailer 1$613 USD
Retailer 7$623 USD
Retailer 11$785 USD
Retailer 6$818 USD
Retailer 10$958 USD
Retailer 14$1,037 USD
Retailer 4$1,195 USD
Retailer 8$1,299 USD

29 data points across 15 retailers

22 retailers$236 USD to $2,260 USD

A
Cheapest Retailer
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$236 USD
A
Retailer 2
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$263 USD
View
Final sale: no returns
A
Retailer 3
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$273 USD
View
A
Retailer 4
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$292 USD
View
A
Retailer 5
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$292 USD
View
A
Retailer 6
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$392 USD
View
A
Retailer 7
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$422 USD
HK$3,300 HKD
View
Price last confirmed 55 days ago
A
Retailer 8
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$523 USD
View
A
Retailer 9
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$524 USD
£412 GBP
View
A
Retailer 10
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$532 USD
View
A
Retailer 11
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$554 USD
ZAR 8,953 ZAR
View
A
Retailer 12
-
$613 USD
£483 GBP
View
A
Retailer 13
-
$623 USD
A$958 AUD
View
B+
Retailer 14
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$785 USD
A$1,208 AUD
View
B+
Retailer 15
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$818 USD
View
B+
Retailer 16
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$958 USD
A$1,474 AUD
View
B+
Retailer 17
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$1,037 USD
View
B+
Retailer 18
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$1,195 USD
View
Price last confirmed 11 days ago
B
Retailer 19
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$1,206 USD
View
B+
Retailer 20
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$1,299 USD
£1,023 GBP
View
B
Retailer 21
-
$1,306 USD
View
Most Expensive
B
Do Amore Diamonds
27-A4E666EBD · Oct 29
$2,260 USD
View
21 more retailers have this diamond
Prices start from $236 USDSave up to $2,024 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
1.23ct Round
$236 USD