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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG786633884

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786633884

Diamond specifications and retailer prices

From $333 SGD
$260 USD
As of October 29, 2026
Save $2,845 SGD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,179 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 LG786633884 or 786633884. Listed at 24 retailers as of October 29, 2026, with prices from $333 to $3,179, a $2,845 spread on the same certified stone. Brilliant Earth lists it at $3,179. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786633884
Dimensions6.91 × 6.95 × 4.31 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
6.91 mm6.95 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786633884
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

Caratlytics Score

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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 29
Current: $3,179 SGD|Low: $372 SGD|High: $3,179 SGD|Avg: $991 SGD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 5$372 SGD
Retailer 3$558 SGD
Retailer 12$615 SGD
Retailer 9$710 SGD
Retailer 4$738 SGD
Retailer 7$743 SGD
Retailer 2$787 SGD
Retailer 8$1,006 SGD
Retailer 11$1,050 SGD
Retailer 10$1,576 SGD
Retailer 6$1,664 SGD
Brilliant Earth$3,179 SGD

41 data points across 12 retailers

24 retailers$333 SGD to $3,179 SGD

A
Cheapest Retailer
-
$333 SGD
$260 USD
A
Retailer 2
-
$372 SGD
$290 USD
View
Final sale: no returns
A
Retailer 3
-
$386 SGD
$301 USD
View
A
Retailer 4
-
$413 SGD
$322 USD
View
A
Retailer 5
-
$413 SGD
$322 USD
View
A
Retailer 6
-
$459 SGD
HK$2,800 HKD
View
A
Retailer 7
-
$558 SGD
$435 USD
View
A
Retailer 8
-
$615 SGD
$480 USD
View
A
Retailer 9
-
$710 SGD
ZAR 8,945 ZAR
View
A
Retailer 10
-
$738 SGD
$576 USD
View
A
Retailer 11
-
$743 SGD
€552 EUR
View
A
Retailer 12
-
$787 SGD
£484 GBP
View
A
Retailer 13
-
$931 SGD
$726 USD
View
A
Retailer 14
-
$1,006 SGD
A$1,207 AUD
View
B+
Retailer 15
-
$1,050 SGD
$819 USD
View
B+
Retailer 16
-
$1,328 SGD
$1,036 USD
View
B+
Retailer 17
-
$1,334 SGD
View
B+
Retailer 18
-
$1,394 SGD
$1,087 USD
View
B+
Retailer 19
-
$1,453 SGD
$1,134 USD
View
Retailer 20
-
$1,576 SGD
$1,230 USD
View
Price last confirmed 12 days ago
B+
Retailer 21
-
$1,664 SGD
£1,022 GBP
View
B+
Retailer 22
-
$1,775 SGD
$1,385 USD
View
B
Retailer 23
-
$2,930 SGD
£1,800 GBP
View
Most Expensive
B
Brilliant Earth
18980939A · Oct 29
$3,179 SGD
$2,480 USD
View
23 more retailers have this diamond
Prices start from $333 SGDSave up to $2,845 SGD

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
$333 SGD