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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG588375105

Shape and cutting style on the report: Round brilliant

Certificate IGI LG588375105

Diamond specifications and retailer prices

From $310 SGD
$242 USD
As of October 29, 2026
Save $1,393 SGD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,703 SGD at Reve Diamonds · As of October 30, 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 LG588375105 or 588375105. Listed at 18 retailers as of October 29, 2026, with prices from $310 to $1,703, a $1,393 spread on the same certified stone. Reve Diamonds lists it at $1,703. 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 angle34°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588375105
Dimensions7.03 × 6.99 × 4.25 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
7.03 mm6.99 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588375105
Side View
Table 59.0%Crown 34°Girdle: MediumPavilion 41°Culet: NoneDepth 60.6%

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: $624 SGD|Low: $310 SGD|High: $1,563 SGD|Avg: $687 SGD|+0.2%
Retailer 1
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 8$310 SGD
Retailer 6$346 SGD
Retailer 13$360 SGD
Retailer 10$386 SGD
Retailer 14$386 SGD
Retailer 1$624 SGD
Retailer 4$649 SGD
Retailer 2$651 SGD
Retailer 5$695 SGD
Retailer 7$729 SGD
Retailer 11$946 SGD
Retailer 12$1,238 SGD
Retailer 3$1,243 SGD
Retailer 9$1,553 SGD

39 data points across 14 retailers

18 retailers$310 SGD to $1,703 SGD

A
Cheapest Retailer
-
$310 SGD
$242 USD
A
Retailer 2
-
$346 SGD
$270 USD
View
Final sale: no returns
A
Retailer 3
-
$360 SGD
$281 USD
View
Retailer 4
-
$386 SGD
$301 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$386 SGD
$301 USD
View
A
Retailer 6
-
$624 SGD
£383 GBP
View
A
Retailer 7
-
$649 SGD
$506 USD
View
Retailer 8
-
$651 SGD
ZAR 8,211 ZAR
View
Price last confirmed 7 days ago
A
Retailer 9
-
$695 SGD
$542 USD
View
A
Retailer 10
-
$695 SGD
$542 USD
View
A
Retailer 11
-
$729 SGD
£448 GBP
View
A
Retailer 12
-
$923 SGD
$720 USD
View
A
Retailer 13
-
$946 SGD
A$1,136 AUD
View
B+
Retailer 14
-
$1,238 SGD
$966 USD
View
B+
Retailer 15
-
$1,243 SGD
$970 USD
View
B+
Retailer 16
-
$1,305 SGD
$1,018 USD
View
B+
Retailer 17
-
$1,553 SGD
£954 GBP
View
Most Expensive
B+
Reve Diamonds
E25E1660C · Oct 30
$1,703 SGD
$1,329 USD
View
17 more retailers have this diamond
Prices start from $310 SGDSave up to $1,393 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
$310 SGD