Round|Lab Grown|IGI

1.26ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG811619677

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811619677

Diamond specifications and retailer prices

From $433 USD
As of November 5, 2026
Save $1,534 USD (78%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,570 USD at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811619677 or 811619677. Listed at 23 retailers as of November 5, 2026, with a 354% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811619677
Dimensions6.96 × 6.98 × 4.24 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.96 mm6.98 mm1.26 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811619677
Side View
Table 59.0%Crown 35.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.9%

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: $2,570 USD|Low: $416 USD|High: $2,570 USD|Avg: $1,058 USD
Brilliant Earth
Retailer 2
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Retailer 20
November 5, 2026
Retailer 5$433 USD
Retailer 12$485 USD
Retailer 8$537 USD
Retailer 9$537 USD
Retailer 18$680 USD
Retailer 11$766 USD
Retailer 3$843 USD
Retailer 19$844 USD
Retailer 2$846 USD
Retailer 15$875 USD
Retailer 4$909 USD
Retailer 16$926 USD
Retailer 6$1,287 USD
Retailer 13$1,313 USD
Retailer 7$1,455 USD
Retailer 17$1,506 USD
Retailer 10$1,703 USD
Retailer 20$1,799 USD
Retailer 14$1,967 USD
Brilliant Earth$2,570 USD

37 data points across 20 retailers

23 retailers$433 USD to $1,967 USD

A
Cheapest Retailer
-
$433 USD
A
Retailer 2
-
$484 USD
View
Final sale: no returns
A
Retailer 3
-
$485 USD
View
Retailer 4
-
$537 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$537 USD
View
A
Retailer 6
-
$680 USD
View
A
Retailer 7
-
$766 USD
View
B+
Retailer 8
-
$825 USD
View
B+
Retailer 9
-
$843 USD
View
B+
Retailer 10
-
$844 USD
View
A
Retailer 11
-
$846 USD
View
B+
Retailer 12
-
$875 USD
View
B+
Retailer 13
-
$926 USD
View
Retailer 14
-
$1,287 USD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$1,313 USD
View
Retailer 16
-
$1,455 USD
View
Price last confirmed 30 days ago
B
Retailer 17
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$1,506 USD
View
Retailer 18
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$1,703 USD
View
Price last confirmed 24 days ago
B
Retailer 19
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$1,726 USD
View
Retailer 20
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$1,758 USD
View
Price last confirmed 25 days ago
B
Retailer 21
-
$1,799 USD
View
B
Retailer 22
-
$1,967 USD
View
Most Expensive
Brilliant Earth
20986249A · Oct 14
$2,570 USD
View
Price last confirmed 22 days ago
22 more retailers have this diamond
Prices start from $433 USDSave up to $1,534 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
$433 USD