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Oval|Lab Grown|IGI

1.28ct E IF Oval Lab Grown Diamond

EX • E/IF • IGI LG735568337

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG735568337

Diamond specifications and retailer prices

From $372 SGD
$290 USD
As of October 29, 2026
Save $2,192 SGD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,563 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.28ct lab-grown oval diamond

This 1.28ct lab-grown oval 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 LG735568337 or 735568337. Listed at 13 retailers as of October 29, 2026, with prices from $372 to $2,563, a $2,192 spread on the same certified stone. Brilliant Earth lists it at $2,563. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735568337
Dimensions6.07 × 6.07 × 3.84 mm
L/W Ratio1.00
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
6.07 mm6.07 mm1.28 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735568337
Side View
Table 60.0%Crown 35.4°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.3%

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: $2,563 SGD|Low: $327 SGD|High: $3,973 SGD|Avg: $1,110 SGD|-35.5%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 12$372 SGD
Retailer 2$384 SGD
Retailer 15$510 SGD
Retailer 5$592 SGD
Retailer 17$622 SGD
Retailer 11$674 SGD
Retailer 14$770 SGD
Retailer 4$785 SGD
Retailer 10$801 SGD
Retailer 3$882 SGD
Retailer 6$1,061 SGD
Retailer 18$1,102 SGD
Retailer 8$1,230 SGD
Retailer 7$1,406 SGD
Retailer 13$1,458 SGD
Retailer 16$1,643 SGD
Retailer 9$2,294 SGD
Brilliant Earth$2,563 SGD

5 data points across 18 retailers

13 retailers$372 SGD to $2,563 SGD

A
Cheapest Retailer
-
$372 SGD
$290 USD
Final sale: no returns
A
Retailer 2
-
$384 SGD
£236 GBP
View
A
Retailer 3
-
$510 SGD
$398 USD
View
A
Retailer 4
-
$622 SGD
ZAR 7,835 ZAR
View
A
Retailer 5
-
$674 SGD
£414 GBP
View
A
Retailer 6
-
$770 SGD
$601 USD
View
A
Retailer 7
-
$785 SGD
$613 USD
View
B+
Retailer 8
-
$882 SGD
A$1,059 AUD
View
B+
Retailer 9
-
$1,102 SGD
$860 USD
View
B+
Retailer 10
-
$1,230 SGD
$960 USD
View
B
Retailer 11
-
$1,458 SGD
£896 GBP
View
B
Retailer 12
-
$1,643 SGD
$1,282 USD
View
Most Expensive
B
Brilliant Earth
17527358A · Oct 29
$2,563 SGD
$2,000 USD
View
12 more retailers have this diamond
Prices start from $372 SGDSave up to $2,192 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 Oval
$372 SGD