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Oval|Lab Grown|IGI

1.28ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG815677214

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG815677214

Diamond specifications and retailer prices

From $331 SGD
$258 USD
As of October 28, 2026
Save $2,233 SGD (87%) vs most expensive(unlock to see where)
20 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 LG815677214 or 815677214. Listed at 20 retailers as of October 28, 2026, with prices from $331 to $2,563, a $2,233 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815677214
Dimensions8.67 × 5.99 × 3.76 mm
L/W Ratio1.45
Girdle conditionFaceted
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
8.67 mm5.99 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815677214
Side View
Table 62.0%Crown 37.9°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 62.8%

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 28
Current: $2,563 SGD|Low: $245 SGD|High: $2,743 SGD|Avg: $1,122 SGD|-6.5%
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 5$331 SGD
Retailer 14$515 SGD
Retailer 12$610 SGD
Retailer 8$630 SGD
Retailer 2$690 SGD
Retailer 3$798 SGD
Retailer 9$895 SGD
Retailer 13$1,104 SGD
Retailer 10$1,183 SGD
Retailer 4$1,246 SGD
Retailer 7$1,478 SGD
Retailer 6$1,656 SGD
Retailer 11$1,891 SGD
Brilliant Earth$2,563 SGD

35 data points across 14 retailers

20 retailers$331 SGD to $2,563 SGD

Retailer 1
-
$296 SGD
$231 USD
Price last confirmed 19 days ago
Retailer 2
-
$308 SGD
$240 USD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$331 SGD
$258 USD
View
Final sale: no returns
Retailer 4
-
$358 SGD
$279 USD
View
Price last confirmed 35 days ago
Retailer 5
-
$367 SGD
$286 USD
View
Price last confirmed 18 days ago
Retailer 6
-
$367 SGD
$286 USD
View
Price last confirmed 27 days ago
Retailer 7
-
$377 SGD
$294 USD
View
Price last confirmed 35 days ago
A
Retailer 8
-
$515 SGD
$402 USD
View
A
Retailer 9
-
$630 SGD
ZAR 7,945 ZAR
View
A
Retailer 10
-
$690 SGD
£424 GBP
View
A
Retailer 11
-
$798 SGD
$622 USD
View
B+
Retailer 12
-
$895 SGD
A$1,074 AUD
View
B+
Retailer 13
-
$1,104 SGD
$861 USD
View
Retailer 14
-
$1,179 SGD
$920 USD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$1,183 SGD
$923 USD
View
B+
Retailer 16
-
$1,246 SGD
$973 USD
View
B+
Retailer 17
-
$1,478 SGD
£908 GBP
View
B
Retailer 18
-
$1,656 SGD
$1,292 USD
View
Retailer 19
-
$1,891 SGD
$1,475 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21017707A · Oct 29
$2,563 SGD
$2,000 USD
View
19 more retailers have this diamond
Prices start from $331 SGDSave up to $2,233 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
$331 SGD