Round|Lab Grown|IGI

1.25ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG837626274

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837626274

Diamond specifications and retailer prices

From $512 USD
As of October 30, 2026
Save $1,578 USD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,550 USD at Brilliant Earth · As of October 14, 2026
View at Brilliant Earth

About this 1.25ct lab-grown round diamond

This 1.25ct 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 LG837626274 or 837626274. Listed at 16 retailers as of October 25, 2026, with a 308% 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

1.25
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837626274
Dimensions6.87 × 6.90 × 4.28 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
6.87 mm6.90 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837626274
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.1%

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: Oct 30
Current: $930 USD|Low: $512 USD|High: $2,109 USD|Avg: $1,205 USD|+2.1%
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
Retailer 16
October 31, 2026
Retailer 4$512 USD
Retailer 12$710 USD
Retailer 7$823 USD
Retailer 3$866 USD
Retailer 15$891 USD
Retailer 9$904 USD
Retailer 1$930 USD
Retailer 11$976 USD
Retailer 8$1,294 USD
Retailer 10$1,385 USD
Retailer 2$1,465 USD
Retailer 13$1,527 USD
Retailer 5$1,797 USD
Retailer 6$1,858 USD
Retailer 16$1,871 USD
Retailer 14$2,090 USD

17 data points across 16 retailers

16 retailers$512 USD to $2,090 USD

A
Cheapest Retailer
-
$512 USD
Final sale: no returns
A
Retailer 2
-
$710 USD
View
B+
Retailer 3
-
$823 USD
View
B+
Retailer 4
-
$891 USD
View
B+
Retailer 5
-
$904 USD
£712 GBP
View
B+
Retailer 6
-
$930 USD
£733 GBP
View
B+
Retailer 7
-
$976 USD
ZAR 15,774 ZAR
View
Retailer 8
-
$1,294 USD
A$1,991 AUD
View
Price last confirmed 23 days ago
B+
Retailer 9
-
$1,385 USD
A$2,130 AUD
View
Retailer 10
-
$1,465 USD
View
Price last confirmed 17 days ago
B
Retailer 11
-
$1,527 USD
View
Retailer 12
-
$1,797 USD
SGD 2,428 SGD
View
Price last confirmed 18 days ago
Retailer 13
-
$1,858 USD
View
Price last confirmed 18 days ago
B
Retailer 14
-
$1,871 USD
View
B
Retailer 15
-
$2,090 USD
£1,646 GBP
View
Most Expensive
Brilliant Earth
21722766A · Oct 14
$2,550 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from $512 USDSave up to $1,578 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
1.25ct Round
$512 USD