CaratHunter
Plans
Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG713560121

Shape and cutting style on the report: Round brilliant

Certificate IGI LG713560121

Diamond specifications and retailer prices

From $293 USD
As of October 28, 2026
Save $1,098 USD (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,391 USD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.28ct lab-grown round diamond

This 1.28ct 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 LG713560121 or 713560121. Listed at 21 retailers as of October 28, 2026, with prices from $293 to $1,391, a $1,098 spread on the same certified stone. Reve Diamonds lists it at $1,391. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG713560121
Dimensions6.99 × 6.96 × 4.32 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
6.99 mm6.96 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG713560121
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.0%

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 28
Current: $618 USD|Low: $208 USD|High: $1,391 USD|Avg: $716 USD|+6.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 29, 2026
Retailer 2$293 USD
Retailer 5$325 USD
Retailer 4$485 USD
Retailer 9$539 USD
Retailer 1$618 USD
Retailer 10$653 USD
Retailer 8$727 USD
Retailer 3$790 USD
Retailer 7$997 USD
Retailer 6$1,308 USD
Reve Diamonds$1,391 USD

34 data points across 11 retailers

21 retailers$293 USD to $1,391 USD

Retailer 1
-
$251 USD
Price last confirmed 28 days ago
Retailer 2
-
$262 USD
View
Price last confirmed 37 days ago
Retailer 3
-
$262 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$262 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$293 USD
View
Final sale: no returns
Retailer 6
-
$304 USD
View
Price last confirmed 37 days ago
Retailer 7
-
$304 USD
View
Price last confirmed 20 days ago
Retailer 8
-
$320 USD
View
Price last confirmed 37 days ago
Retailer 9
-
$325 USD
View
Price last confirmed 13 days ago
A
Retailer 10
-
$485 USD
View
A
Retailer 11
-
$539 USD
View
A
Retailer 12
-
$618 USD
£486 GBP
View
A
Retailer 13
-
$653 USD
View
A
Retailer 14
-
$727 USD
View
A
Retailer 15
-
$790 USD
A$1,215 AUD
View
B+
Retailer 16
-
$997 USD
View
B+
Retailer 17
-
$1,044 USD
View
Retailer 18
-
$1,044 USD
View
Price last confirmed 38 days ago
B+
Retailer 19
-
$1,095 USD
View
B+
Retailer 20
-
$1,308 USD
£1,030 GBP
View
Most Expensive
B
Reve Diamonds
CB6CF838C · Oct 28
$1,391 USD
View
20 more retailers have this diamond
Prices start from $293 USDSave up to $1,098 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
1.28ct Round
$293 USD