Emerald|Lab Grown|IGI

1.28ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG811633609

Shape and cutting style on the report: Emerald cut

Certificate IGI LG811633609

Diamond specifications and retailer prices

From $206 USD
As of October 30, 2026
Save $1,564 USD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,770 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.28ct lab-grown emerald diamond

This 1.28ct lab-grown emerald 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 LG811633609 or 811633609. Listed at 21 retailers as of October 30, 2026, with prices from $206 to $1,770, a $1,564 spread on the same certified stone. Brilliant Earth lists it at $1,770. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811633609
Dimensions7.32 × 5.15 × 3.32 mm
L/W Ratio1.42
Culet sizeLarge
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
7.32 mm5.15 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811633609
Side View
Table 64.0%Crown 35.5°Girdle: MediumPavilion 39.3°Culet: LargeDepth 64.5%

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: $1,770 USD|Low: $201 USD|High: $2,720 USD|Avg: $679 USD|-34.9%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 16$206 USD
Retailer 10$232 USD
Retailer 6$241 USD
Retailer 5$258 USD
Retailer 8$258 USD
Retailer 13$345 USD
Retailer 18$432 USD
Retailer 3$443 USD
Retailer 15$470 USD
Retailer 12$502 USD
Retailer 2$620 USD
Retailer 4$630 USD
Retailer 7$828 USD
Retailer 9$833 USD
Retailer 17$874 USD
Retailer 19$1,038 USD
Retailer 14$1,212 USD
Retailer 11$1,480 USD
Brilliant Earth$1,770 USD

36 data points across 19 retailers

21 retailers$206 USD to $1,770 USD

A
Cheapest Retailer
-
$206 USD
A
Retailer 2
-
$232 USD
View
Final sale: no returns
A
Retailer 3
-
$241 USD
View
A
Retailer 4
-
$258 USD
View
A
Retailer 5
-
$258 USD
View
Retailer 6
-
$294 USD
HK$2,300 HKD
View
Price last confirmed 56 days ago
B+
Retailer 7
-
$345 USD
View
A
Retailer 8
-
$432 USD
€411 EUR
View
A
Retailer 9
-
$443 USD
ZAR 7,149 ZAR
View
A
Retailer 10
-
$470 USD
£370 GBP
View
A
Retailer 11
-
$502 USD
View
A
Retailer 12
-
$620 USD
View
A
Retailer 13
-
$630 USD
A$969 AUD
View
Retailer 14
-
$762 USD
View
Price last confirmed 25 days ago
B+
Retailer 15
-
$828 USD
View
B+
Retailer 16
-
$833 USD
View
B+
Retailer 17
-
$874 USD
View
B+
Retailer 18
-
$1,038 USD
£817 GBP
View
B
Retailer 19
-
$1,212 USD
View
B
Retailer 20
-
$1,480 USD
View
Most Expensive
B
Brilliant Earth
20880290A · Oct 30
$1,770 USD
View
20 more retailers have this diamond
Prices start from $206 USDSave up to $1,564 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 Emerald
$206 USD