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Radiant|Lab Grown|IGI

1.73ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG530214397

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

Certificate IGI LG530214397

Diamond specifications and retailer prices

From $278 SGD
$217 USD
As of October 27, 2026
Save $896 SGD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,493 SGD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.73ct lab-grown radiant diamond

This 1.73ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG530214397 or 530214397. Listed at 16 retailers as of October 27, 2026, with a 322% 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

1.73
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG530214397
Dimensions8.32 × 5.98 × 4.13 mm
L/W Ratio1.39
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
8.32 mm5.98 mm1.73 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG530214397
Side View
Table 65.5%Crown 43.6°Girdle: MediumPavilion 36.2°Culet: NoneDepth 69.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: $1,493 SGD|Low: $278 SGD|High: $1,519 SGD|Avg: $760 SGD|-1.7%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 15$278 SGD
Retailer 3$311 SGD
Retailer 13$322 SGD
Retailer 8$345 SGD
Retailer 9$443 SGD
Retailer 12$464 SGD
Retailer 2$637 SGD
Retailer 5$642 SGD
Retailer 10$682 SGD
Retailer 14$738 SGD
Retailer 11$1,106 SGD
Retailer 7$1,151 SGD
Retailer 4$1,174 SGD
Retailer 6$1,437 SGD
Rare Carat$1,493 SGD

41 data points across 15 retailers

16 retailers$278 SGD to $1,174 SGD

A
Cheapest Retailer
-
$278 SGD
$217 USD
A
Retailer 2
-
$311 SGD
$243 USD
View
Final sale: no returns
A
Retailer 3
-
$322 SGD
$251 USD
View
A
Retailer 4
-
$345 SGD
$269 USD
View
A
Retailer 5
-
$356 SGD
$278 USD
View
A
Retailer 6
-
$443 SGD
£272 GBP
View
B+
Retailer 7
-
$464 SGD
$362 USD
View
A
Retailer 8
-
$637 SGD
£391 GBP
View
B+
Retailer 9
-
$642 SGD
€477 EUR
View
B+
Retailer 10
-
$682 SGD
$532 USD
View
B+
Retailer 11
-
$738 SGD
$576 USD
View
B+
Retailer 12
-
$1,106 SGD
$863 USD
View
B
Retailer 13
-
$1,151 SGD
$898 USD
View
B
Retailer 14
-
$1,174 SGD
$916 USD
View
Retailer 15
-
$1,437 SGD
£883 GBP
View
Price last confirmed 8 days ago
Most Expensive
Rare Carat
KG108-45A · Oct 18
$1,493 SGD
$1,165 USD
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from $278 SGDSave up to $896 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
1.73ct Radiant
$278 SGD