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Round|Lab Grown|IGI

1.23ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG628409000

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628409000

Diamond specifications and retailer prices

From $223 USD
As of November 5, 2026
Save $1,917 USD (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,140 USD at Do Amore Diamonds · As of November 4, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628409000 or 628409000. Listed at 20 retailers as of November 4, 2026, with prices from $223 to $2,140, a $1,917 spread on the same certified stone. Do Amore Diamonds lists it at $2,140. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628409000
Dimensions6.86 × 6.80 × 4.23 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
6.86 mm6.80 mm1.23 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628409000
Side View
Table 57.0%Crown 36.1°Girdle: MediumPavilion 40.3°Culet: NoneDepth 62.0%

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: Nov 5
Current: $2,140 USD|Low: $220 USD|High: $2,140 USD|Avg: $701 USD
Do Amore Diamonds
Retailer 2
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Retailer 19
November 5, 2026
Retailer 19$223 USD
Retailer 6$249 USD
Retailer 3$259 USD
Retailer 4$277 USD
Retailer 18$277 USD
Retailer 9$372 USD
Retailer 5$496 USD
Retailer 10$508 USD
Retailer 7$519 USD
Retailer 16$527 USD
Retailer 2$573 USD
Retailer 14$748 USD
Retailer 15$781 USD
Retailer 17$886 USD
Retailer 13$1,110 USD
Retailer 11$1,153 USD
Retailer 12$1,221 USD
Retailer 8$1,267 USD
Do Amore Diamonds$2,140 USD

33 data points across 19 retailers

20 retailers$223 USD to $2,140 USD

A
Cheapest Retailer
-
$223 USD
A
Retailer 2
-
$249 USD
View
Final sale: no returns
A
Retailer 3
-
$259 USD
View
A
Retailer 4
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$277 USD
View
A
Retailer 5
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$372 USD
View
Retailer 6
-
$422 USD
View
Price last confirmed 62 days ago
A
Retailer 7
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$508 USD
View
A
Retailer 8
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$519 USD
View
A
Retailer 9
-
$527 USD
View
B+
Retailer 10
-
$573 USD
View
B+
Retailer 11
-
$609 USD
View
B+
Retailer 12
-
$748 USD
View
B+
Retailer 13
-
$781 USD
View
Retailer 14
-
$886 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
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$1,080 USD
View
B
Retailer 16
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$1,110 USD
View
B
Retailer 17
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$1,153 USD
View
B
Retailer 18
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$1,221 USD
View
B
Retailer 19
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$1,267 USD
View
Most Expensive
B
Do Amore Diamonds
27-610A9F749 · Nov 4
$2,140 USD
View
19 more retailers have this diamond
Prices start from $223 USDSave up to $1,917 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
$223 USD