Round|Lab Grown|IGI

1.29ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG728577513

Shape and cutting style on the report: Round brilliant

Certificate IGI LG728577513

Diamond specifications and retailer prices

From $217 USD
As of October 30, 2026
Save $957 USD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,215 USD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG728577513 or 728577513. Listed at 21 retailers as of October 30, 2026, with a 441% 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

1.29
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728577513
Dimensions7.00 × 6.97 × 4.29 mm
L/W Ratio1.00
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
7.00 mm6.97 mm1.29 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728577513
Side View
Table 59.0%Crown 34.3°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,215 USD|Low: $217 USD|High: $1,225 USD|Avg: $597 USD|-0.8%
Rare Carat
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$217 USD
Retailer 6$254 USD
Retailer 7$257 USD
Retailer 11$335 USD
Retailer 8$389 USD
Retailer 9$413 USD
Retailer 2$437 USD
Retailer 3$489 USD
Retailer 10$586 USD
Retailer 4$713 USD
Retailer 13$775 USD
Retailer 5$826 USD
Retailer 12$1,129 USD
Retailer 15$1,174 USD
Rare Carat$1,215 USD

42 data points across 15 retailers

21 retailers$217 USD to $1,174 USD

Retailer 1
-
$186 USD
Price last confirmed 23 days ago
Retailer 2
-
$207 USD
View
Price last confirmed 38 days ago
A
Retailer 3
-
$217 USD
View
Final sale: no returns
Retailer 4
-
$240 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$240 USD
View
Price last confirmed 28 days ago
Retailer 6
-
$240 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$254 USD
View
Price last confirmed 39 days ago
B+
Retailer 8
-
$335 USD
View
A
Retailer 9
-
$389 USD
£306 GBP
View
A
Retailer 10
-
$413 USD
ZAR 6,665 ZAR
View
A
Retailer 11
-
$437 USD
£344 GBP
View
A
Retailer 12
-
$489 USD
View
A
Retailer 13
-
$586 USD
A$902 AUD
View
A
Retailer 14
-
$713 USD
View
Retailer 15
-
$772 USD
View
Price last confirmed 27 days ago
A
Retailer 16
-
$775 USD
View
Retailer 17
-
$826 USD
View
Price last confirmed 40 days ago
B+
Retailer 18
-
$826 USD
View
B+
Retailer 19
-
$1,129 USD
£889 GBP
View
B+
Retailer 20
-
$1,174 USD
View
Most Expensive
Rare Carat
GD17591_l_728577513 · Oct 18
$1,215 USD
View
Price last confirmed 13 days ago
20 more retailers have this diamond
Prices start from $217 USDSave up to $957 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
$217 USD