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Radiant|Lab Grown|IGI

1.05ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG681543680

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

Certificate IGI LG681543680

Diamond specifications and retailer prices

From $384 SGD
$300 USD
As of October 30, 2026
Save $1,841 SGD (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,224 SGD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG681543680 or 681543680. Listed at 7 retailers as of October 30, 2026, with prices from $384 to $2,224, a $1,841 spread on the same certified stone. Do Amore Diamonds lists it at $2,224. 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

1.05
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG681543680
Dimensions7.22 × 5.01 × 3.31 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
Pre-existing laser inscription on girdle. As Grown - No indication of post-growth treatment.. This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
7.22 mm5.01 mm1.05 ctD / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG681543680
Side View
Table 75.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,224 SGD|Low: $384 SGD|High: $2,224 SGD|Avg: $974 SGD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 6$384 SGD
Retailer 4$568 SGD
Retailer 5$633 SGD
Retailer 7$698 SGD
Retailer 3$735 SGD
Retailer 8$1,128 SGD
Retailer 2$1,464 SGD
Do Amore Diamonds$2,224 SGD

12 data points across 8 retailers

7 retailers$384 SGD to $2,224 SGD

B+
Cheapest Retailer
-
$384 SGD
$300 USD
B
Retailer 2
-
$568 SGD
$444 USD
View
B
Retailer 3
-
$633 SGD
$495 USD
View
Retailer 4
-
$735 SGD
$575 USD
View
Price last confirmed 10 days ago
C
Retailer 5
-
$1,133 SGD
£698 GBP
View
C
Retailer 6
-
$1,464 SGD
£902 GBP
View
Most Expensive
C
Do Amore Diamonds
7-1678665 · Oct 30
$2,224 SGD
$1,740 USD
View
6 more retailers have this diamond
Prices start from $384 SGDSave up to $1,841 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.

B+
1.05ct Radiant
$384 SGD