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Round|Lab Grown|IGI

1.09ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG780687717

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780687717

Diamond specifications and retailer prices

From $183 SGD
$143 USD
As of October 29, 2026
Save $886 SGD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,069 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG780687717 or 780687717. Listed at 16 retailers as of October 29, 2026, with prices from $183 to $1,069, a $886 spread on the same certified stone. MOH London lists it at $1,069. 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

1.09
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780687717
Dimensions6.61 × 6.57 × 4.11 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
6.61 mm6.57 mm1.09 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780687717
Side View
Table 56.0%Crown 35.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.4%

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: $1,069 SGD|Low: $177 SGD|High: $1,078 SGD|Avg: $471 SGD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5$183 SGD
Retailer 10$213 SGD
Retailer 8$228 SGD
Retailer 9$228 SGD
Retailer 4$390 SGD
Retailer 6$398 SGD
Retailer 2$527 SGD
Retailer 11$574 SGD
Retailer 3$641 SGD
Retailer 7$732 SGD
MOH London$1,069 SGD

37 data points across 11 retailers

16 retailers$183 SGD to $1,069 SGD

A
Cheapest Retailer
-
$183 SGD
$143 USD
A
Retailer 2
-
$205 SGD
$160 USD
View
Final sale: no returns
Retailer 3
-
$213 SGD
$166 USD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$228 SGD
$178 USD
View
A
Retailer 5
-
$228 SGD
$178 USD
View
B+
Retailer 6
-
$308 SGD
$240 USD
View
A
Retailer 7
-
$390 SGD
£240 GBP
View
A
Retailer 8
-
$398 SGD
€296 EUR
View
B+
Retailer 9
-
$482 SGD
$376 USD
View
B+
Retailer 10
-
$527 SGD
£324 GBP
View
B+
Retailer 11
-
$546 SGD
$426 USD
View
B+
Retailer 12
-
$574 SGD
$448 USD
View
B+
Retailer 13
-
$641 SGD
$500 USD
View
Retailer 14
-
$700 SGD
$546 USD
View
Price last confirmed 35 days ago
B
Retailer 15
-
$732 SGD
$571 USD
View
Most Expensive
B
MOH London
LG780687717 · Oct 29
$1,069 SGD
£657 GBP
View
15 more retailers have this diamond
Prices start from $183 SGDSave up to $886 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
1.09ct Round
$183 SGD