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Round|Lab Grown|IGI

1.78ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG629482184

Shape and cutting style on the report: Round brilliant

Certificate IGI LG629482184

Diamond specifications and retailer prices

From $269 SGD
$210 USD
As of October 29, 2026
Save $2,628 SGD (91%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,898 SGD at Jared · As of October 28, 2026
View at Jared

About this 1.78ct lab-grown round diamond

This 1.78ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG629482184 or 629482184. Listed at 10 retailers as of October 28, 2026, with prices from $269 to $2,898, a $2,628 spread on the same certified stone. Jared lists it at $2,898. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.78
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629482184
Dimensions7.78 × 7.82 × 4.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.78 mm7.82 mm1.78 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629482184
Side View
Table 58.0%Crown 33.7°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,488 SGD|Low: $226 SGD|High: $2,680 SGD|Avg: $1,080 SGD|-2.8%
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
October 29, 2026
Retailer 11$269 SGD
Retailer 12$305 SGD
Retailer 10$313 SGD
Retailer 9$574 SGD
Retailer 2$721 SGD
Retailer 3$790 SGD
Retailer 13$854 SGD
Retailer 6$1,080 SGD
Retailer 7$1,187 SGD
Retailer 5$1,269 SGD
Retailer 1$1,488 SGD
Retailer 4$1,923 SGD
Retailer 8$2,590 SGD

17 data points across 13 retailers

10 retailers$269 SGD to $2,898 SGD

A
Cheapest Retailer
-
$269 SGD
$210 USD
A
Retailer 2
-
$305 SGD
$238 USD
View
Final sale: no returns
A
Retailer 3
-
$313 SGD
$244 USD
View
B+
Retailer 4
-
$574 SGD
$448 USD
View
B+
Retailer 5
-
$1,080 SGD
$842 USD
View
B+
Retailer 6
-
$1,187 SGD
$926 USD
View
B
Retailer 7
-
$1,488 SGD
£914 GBP
View
B
Retailer 8
-
$1,923 SGD
$1,500 USD
View
B
Retailer 9
-
$2,590 SGD
$2,020 USD
View
Most Expensive
B
Jared
150918409 · Oct 28
$2,898 SGD
$2,260 USD
View
9 more retailers have this diamond
Prices start from $269 SGDSave up to $2,628 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
1.78ct Round
$269 SGD