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Radiant|Lab Grown|IGI

1.09ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG678501566

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG678501566

Diamond specifications and retailer prices

From $173 SGD
$135 USD
As of November 2, 2026
Save $1,624 SGD (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,796 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG678501566 or 678501566. Listed at 11 retailers as of October 29, 2026, with prices from $173 to $1,796, a $1,624 spread on the same certified stone. MOH London lists it at $1,796. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678501566
Dimensions7.42 × 5.01 × 3.41 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.42 mm5.01 mm1.09 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678501566
Side View
Table 63.0%Crown 42°Girdle: ThinPavilion 35.2°Culet: NoneDepth 68.1%

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: Nov 2
Current: $1,796 SGD|Low: $132 SGD|High: $1,809 SGD|Avg: $566 SGD|+3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7$173 SGD
Retailer 11$193 SGD
Retailer 10$201 SGD
Retailer 2$278 SGD
Retailer 3$331 SGD
Retailer 5$381 SGD
Retailer 4$624 SGD
Retailer 12$629 SGD
Retailer 8$688 SGD
Retailer 9$725 SGD
Retailer 6$726 SGD
MOH London$1,796 SGD

42 data points across 12 retailers

11 retailers$173 SGD to $1,796 SGD

A
Cheapest Retailer
-
$173 SGD
$135 USD
B+
Retailer 2
-
$193 SGD
$151 USD
View
Final sale: no returns
B+
Retailer 3
-
$201 SGD
$157 USD
View
A
Retailer 4
-
$278 SGD
£171 GBP
View
B+
Retailer 5
-
$381 SGD
€284 EUR
View
B
Retailer 6
-
$629 SGD
$492 USD
View
B
Retailer 7
-
$688 SGD
$538 USD
View
Retailer 8
-
$725 SGD
View
Price last confirmed 21 days ago
B
Retailer 9
-
$726 SGD
$568 USD
View
C
Retailer 10
-
$1,097 SGD
£676 GBP
View
Most Expensive
C
MOH London
LG678501566 · Oct 29
$1,796 SGD
£1,106 GBP
View
10 more retailers have this diamond
Prices start from $173 SGDSave up to $1,624 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 Radiant
$173 SGD