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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG739546432

Shape and cutting style on the report: Round brilliant

Certificate IGI LG739546432

Diamond specifications and retailer prices

From $304 SGD
$237 USD
As of October 29, 2026
Save $1,824 SGD (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,128 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 LG739546432 or 739546432. Listed at 22 retailers as of October 29, 2026, with prices from $304 to $2,128, a $1,824 spread on the same certified stone. Brilliant Earth lists it at $2,128. 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 angle35.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739546432
Dimensions6.96 × 7.00 × 4.29 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
6.96 mm7.00 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739546432
Side View
Table 58.0%Crown 35.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.5%

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 29
Current: $2,128 SGD|Low: $197 SGD|High: $2,205 SGD|Avg: $955 SGD|-3.5%
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
October 30, 2026
Retailer 9$304 SGD
Retailer 3$436 SGD
Retailer 7$528 SGD
Retailer 10$531 SGD
Retailer 2$563 SGD
Retailer 4$655 SGD
Retailer 11$755 SGD
Retailer 14$901 SGD
Retailer 13$998 SGD
Retailer 5$1,064 SGD
Retailer 8$1,455 SGD
Retailer 6$1,508 SGD
Retailer 12$1,532 SGD
Brilliant Earth$2,128 SGD

38 data points across 14 retailers

22 retailers$304 SGD to $2,128 SGD

Retailer 1
-
$250 SGD
$195 USD
Price last confirmed 37 days ago
Retailer 2
-
$250 SGD
$195 USD
View
Price last confirmed 19 days ago
Retailer 3
-
$290 SGD
$226 USD
View
Price last confirmed 38 days ago
A
Retailer 4
-
$304 SGD
$237 USD
View
Final sale: no returns
Retailer 5
-
$305 SGD
$238 USD
View
Price last confirmed 35 days ago
Retailer 6
-
$309 SGD
$241 USD
View
Price last confirmed 18 days ago
Retailer 7
-
$309 SGD
$241 USD
View
Price last confirmed 27 days ago
B+
Retailer 8
-
$436 SGD
$340 USD
View
A
Retailer 9
-
$528 SGD
€392 EUR
View
A
Retailer 10
-
$531 SGD
ZAR 6,697 ZAR
View
A
Retailer 11
-
$563 SGD
£346 GBP
View
A
Retailer 12
-
$655 SGD
$511 USD
View
A
Retailer 13
-
$755 SGD
A$906 AUD
View
A
Retailer 14
-
$901 SGD
$703 USD
View
Retailer 15
-
$995 SGD
$776 USD
View
Price last confirmed 30 days ago
Retailer 16
-
$995 SGD
$776 USD
View
Price last confirmed 33 days ago
A
Retailer 17
-
$998 SGD
$779 USD
View
B+
Retailer 18
-
$1,064 SGD
$830 USD
View
B+
Retailer 19
-
$1,455 SGD
£894 GBP
View
B+
Retailer 20
-
$1,508 SGD
$1,177 USD
View
Retailer 21
-
$1,532 SGD
$1,195 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
16216592A · Oct 29
$2,128 SGD
$1,660 USD
View
21 more retailers have this diamond
Prices start from $304 SGDSave up to $1,824 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
$304 SGD