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Radiant|Lab Grown|IGI

1.00ct F SI1 Radiant Lab Grown Diamond

VG • F/SI1 • IGI LG500148420

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

Certificate IGI LG500148420

Diamond specifications and retailer prices

From $810 SGD
As of November 6, 2026
Save $724 SGD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,640 SGD at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG500148420 or 500148420. Listed at 12 retailers as of November 6, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.2°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500148420
Dimensions6.84 × 4.94 × 3.44 mm
L/W Ratio1.38
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.84 mm4.94 mm1.00 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG500148420
Side View
Table 63.5%Crown 41.2°Girdle: THN-MEDPavilion 31.9°Culet: NoneDepth 69.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,640 SGD|Low: $777 SGD|High: $4,004 SGD|Avg: $1,591 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 7$810 SGD
Retailer 11$880 SGD
Retailer 3$906 SGD
Retailer 9$939 SGD
Retailer 8$1,128 SGD
Retailer 5$1,166 SGD
Retailer 4$1,485 SGD
Retailer 10$1,534 SGD
Retailer 6$2,399 SGD
NZ Jewellers$2,640 SGD
Retailer 2$3,945 SGD

43 data points across 11 retailers

12 retailers$810 SGD to $1,534 SGD

B
Cheapest Retailer
-
$810 SGD
B
Retailer 2
-
$880 SGD
View
B
Retailer 3
-
$906 SGD
View
Final sale: no returns
Retailer 4
-
$939 SGD
View
Price last confirmed 22 days ago
B
Retailer 5
-
$939 SGD
View
B
Retailer 6
-
$1,128 SGD
View
B
Retailer 7
-
$1,166 SGD
View
B
Retailer 8
-
$1,485 SGD
View
C
Retailer 9
-
$1,534 SGD
View
Retailer 10
-
$2,399 SGD
View
Price under review
Most Expensive
NZ Jewellers
4418c550-0e3e-4dc5-83a2-7208e59ce592 · Nov 6
$2,640 SGD
$2,060 USD
View
Price under review
10 more retailers have this diamond
Prices start from $810 SGDSave up to $724 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
1.00ct Radiant
$810 SGD