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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG567368239

Shape and cutting style on the report: Round brilliant

Certificate IGI LG567368239

Diamond specifications and retailer prices

From $202 USD
As of October 29, 2026
Save $973 USD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,215 USD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 LG567368239 or 567368239. Listed at 17 retailers as of October 29, 2026, with a 482% 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

1.28
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG567368239
Dimensions6.98 × 6.92 × 4.30 mm
L/W Ratio1.01
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
6.98 mm6.92 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG567368239
Side View
Table 55.5%Crown 35.4°Girdle: Med.Pavilion 40.4°Culet: NoneDepth 61.9%

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 29
Current: $1,215 USD|Low: $202 USD|High: $1,230 USD|Avg: $557 USD|-1.2%
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
Retailer 16
Retailer 17
October 29, 2026
Retailer 3$202 USD
Retailer 15$225 USD
Retailer 14$234 USD
Retailer 8$250 USD
Retailer 9$250 USD
Retailer 11$406 USD
Retailer 12$429 USD
Retailer 5$433 USD
Retailer 2$456 USD
Retailer 7$572 USD
Retailer 13$611 USD
Retailer 17$705 USD
Retailer 6$803 USD
Retailer 16$806 USD
Retailer 4$857 USD
Retailer 10$1,175 USD
Rare Carat$1,215 USD

36 data points across 17 retailers

17 retailers$202 USD to $1,175 USD

A
Cheapest Retailer
-
$202 USD
A
Retailer 2
-
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$234 USD
View
A
Retailer 4
-
$250 USD
View
A
Retailer 5
-
$250 USD
View
A
Retailer 6
-
$406 USD
£319 GBP
View
A
Retailer 7
-
$429 USD
ZAR 6,931 ZAR
View
A
Retailer 8
-
$433 USD
View
A
Retailer 9
-
$456 USD
£359 GBP
View
A
Retailer 10
-
$572 USD
View
A
Retailer 11
-
$611 USD
A$940 AUD
View
A
Retailer 12
-
$705 USD
View
A
Retailer 13
-
$803 USD
View
A
Retailer 14
-
$806 USD
View
B+
Retailer 15
-
$857 USD
View
B
Retailer 16
-
$1,175 USD
£925 GBP
View
Most Expensive
Rare Carat
AL/704-11_l_567368239 · Oct 18
$1,215 USD
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from $202 USDSave up to $973 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
$202 USD