Round|Lab Grown|IGI

1.29ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG842605479

Shape and cutting style on the report: Round brilliant

Certificate IGI LG842605479

Diamond specifications and retailer prices

From $374 USD
As of October 30, 2026
Save $1,376 USD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,750 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.29ct lab-grown round diamond

This 1.29ct 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 LG842605479 or 842605479. Listed at 15 retailers as of October 30, 2026, with prices from $374 to $1,750, a $1,376 spread on the same certified stone. Brilliant Earth lists it at $1,750. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842605479
Dimensions6.96 × 6.99 × 4.30 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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 mm6.99 mm1.29 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842605479
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

Caratlytics Score

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A+
Exceptional
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: $1,750 USD|Low: $374 USD|High: $2,630 USD|Avg: $970 USD|-19.7%
Brilliant Earth
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 31, 2026
Retailer 14$374 USD
Retailer 2$415 USD
Retailer 7$461 USD
Retailer 15$558 USD
Retailer 5$560 USD
Retailer 10$660 USD
Retailer 11$671 USD
Retailer 13$713 USD
Retailer 8$742 USD
Retailer 12$1,008 USD
Retailer 9$1,217 USD
Retailer 4$1,326 USD
Retailer 3$1,390 USD
Retailer 6$1,670 USD
Brilliant Earth$1,750 USD

21 data points across 15 retailers

15 retailers$374 USD to $1,750 USD

A+
Cheapest Retailer
-
$374 USD
Final sale: no returns
A
Retailer 2
-
$415 USD
View
A
Retailer 3
-
$461 USD
HK$3,600 HKD
View
A
Retailer 4
-
$558 USD
View
A
Retailer 5
-
$560 USD
View
A
Retailer 6
-
$660 USD
£520 GBP
View
A
Retailer 7
-
$671 USD
€639 EUR
View
A
Retailer 8
-
$713 USD
ZAR 11,521 ZAR
View
A
Retailer 9
-
$742 USD
£584 GBP
View
B+
Retailer 10
-
$1,008 USD
A$1,551 AUD
View
B+
Retailer 11
-
$1,217 USD
View
B+
Retailer 12
-
$1,326 USD
SGD 1,792 SGD
View
B+
Retailer 13
-
$1,390 USD
View
B+
Retailer 14
-
$1,670 USD
£1,315 GBP
View
Most Expensive
B
Brilliant Earth
21710952A · Oct 30
$1,750 USD
View
14 more retailers have this diamond
Prices start from $374 USDSave up to $1,376 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+
1.29ct Round
$374 USD