Oval|Lab Grown|IGI

1.23ct F IF Oval Lab Grown Diamond

ID • F/IF • IGI LG816679702

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816679702

Diamond specifications and retailer prices

From $439 USD
As of November 1, 2026
Save $1,341 USD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,780 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.23ct lab-grown oval diamond

This 1.23ct lab-grown oval 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 LG816679702 or 816679702. Listed at 7 retailers as of October 31, 2026, with prices from $439 to $1,780, a $1,341 spread on the same certified stone. Brilliant Earth lists it at $1,780. 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 angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816679702
Dimensions8.56 × 6.11 × 3.76 mm
L/W Ratio1.40
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
8.56 mm6.11 mm1.23 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816679702
Side View
Table 62.0%Crown 35.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,780 USD|Low: $434 USD|High: $2,330 USD|Avg: $871 USD|-23.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$439 USD
Retailer 3$481 USD
Retailer 6$498 USD
Retailer 2$680 USD
Retailer 5$1,193 USD
Retailer 4$1,310 USD
Brilliant Earth$1,780 USD

19 data points across 7 retailers

7 retailers$439 USD to $1,780 USD

A
Cheapest Retailer
-
$439 USD
Retailer 2
-
$481 USD
€458 EUR
View
Price last confirmed 10 days ago
A
Retailer 3
-
$498 USD
View
A
Retailer 4
-
$680 USD
View
B
Retailer 5
-
$1,193 USD
£939 GBP
View
Retailer 6
-
$1,310 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
20574983A · Oct 31
$1,780 USD
View
6 more retailers have this diamond
Prices start from $439 USDSave up to $1,341 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 Oval
$439 USD