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Round|Lab Grown|IGI

1.63ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG450019953

Shape and cutting style on the report: Round brilliant

Certificate IGI LG450019953

Diamond specifications and retailer prices

From $449 SGD
$351 USD
As of October 29, 2026
Save $3,540 SGD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,989 SGD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.63ct lab-grown round diamond

This 1.63ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG450019953 or 450019953. Listed at 18 retailers as of October 29, 2026, with prices from $449 to $3,989, a $3,540 spread on the same certified stone. Do Amore Diamonds lists it at $3,989. 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

1.63
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450019953
Dimensions7.51 × 7.59 × 4.70 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
7.51 mm7.59 mm1.63 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG450019953
Side View
Table 57.5%Crown 34.5°Girdle: MediumPavilion 41.5°Culet: NoneDepth 62.3%

Caratlytics Score

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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: $3,989 SGD|Low: $449 SGD|High: $3,989 SGD|Avg: $1,261 SGD
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 18
October 30, 2026
Retailer 18$449 SGD
Retailer 15$520 SGD
Retailer 12$550 SGD
Retailer 5$556 SGD
Retailer 14$556 SGD
Retailer 3$684 SGD
Retailer 6$748 SGD
Retailer 7$946 SGD
Retailer 9$963 SGD
Retailer 16$984 SGD
Retailer 11$995 SGD
Retailer 10$1,081 SGD
Retailer 2$1,163 SGD
Retailer 17$1,633 SGD
Retailer 8$1,684 SGD
Retailer 4$1,975 SGD
Retailer 13$2,414 SGD
Do Amore Diamonds$3,989 SGD

13 data points across 18 retailers

18 retailers$449 SGD to $3,989 SGD

A
Cheapest Retailer
-
$449 SGD
$351 USD
A
Retailer 2
-
$520 SGD
$407 USD
View
B+
Retailer 3
-
$550 SGD
$430 USD
View
A
Retailer 4
-
$556 SGD
$435 USD
View
A
Retailer 5
-
$556 SGD
$435 USD
View
A
Retailer 6
-
$684 SGD
$535 USD
View
A
Retailer 7
-
$748 SGD
$585 USD
View
Retailer 8
-
$946 SGD
$740 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
$963 SGD
$753 USD
View
A
Retailer 10
-
$984 SGD
$770 USD
View
A
Retailer 11
-
$995 SGD
£613 GBP
View
A
Retailer 12
-
$1,081 SGD
$846 USD
View
A
Retailer 13
-
$1,163 SGD
$910 USD
View
A
Retailer 14
-
$1,633 SGD
$1,277 USD
View
A
Retailer 15
-
$1,684 SGD
$1,317 USD
View
B+
Retailer 16
-
$1,975 SGD
$1,545 USD
View
B+
Retailer 17
-
$2,414 SGD
£1,487 GBP
View
Most Expensive
B
Do Amore Diamonds
27-78B8021BB · Oct 31
$3,989 SGD
$3,120 USD
View
17 more retailers have this diamond
Prices start from $449 SGDSave up to $3,540 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
1.63ct Round
$449 SGD