CaratHunter
Plans
Round|Lab Grown|IGI

1.63ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG425066630

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425066630

Diamond specifications and retailer prices

From $1,420 USD
As of October 28, 2026
Save $4,325 USD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,745 USD at MOH London · As of October 29, 2026
View at MOH London

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 LG425066630 or 425066630. Listed at 12 retailers as of October 28, 2026, with prices from $1,420 to $5,745, a $4,325 spread on the same certified stone. MOH London lists it at $5,745. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425066630
Dimensions7.50 × 7.47 × 4.72 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.50 mm7.47 mm1.63 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425066630
Side View
Table 54.5%Crown 34.9°Girdle: ThickPavilion 40.9°Culet: NoneDepth 63.1%

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: Oct 28
Current: $5,745 USD|Low: $1,420 USD|High: $5,791 USD|Avg: $3,228 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 6$1,420 USD
Retailer 5$1,725 USD
Retailer 9$1,932 USD
Retailer 7$2,001 USD
Retailer 4$2,160 USD
Retailer 10$2,170 USD
Retailer 12$2,670 USD
Retailer 8$3,142 USD
Retailer 2$3,450 USD
Retailer 11$5,480 USD
Retailer 3$5,728 USD
MOH London$5,745 USD

16 data points across 12 retailers

12 retailers$1,420 USD to $5,745 USD

A
Cheapest Retailer
-
$1,420 USD
B+
Retailer 2
-
$1,725 USD
View
B+
Retailer 3
-
$1,877 USD
View
B+
Retailer 4
-
$1,932 USD
View
Final sale: no returns
B
Retailer 5
-
$2,001 USD
View
B
Retailer 6
-
$2,001 USD
View
Price last confirmed 16 days ago
B+
Retailer 7
-
$2,170 USD
View
B
Retailer 8
-
$3,142 USD
View
B
Retailer 9
-
$3,450 USD
View
B
Retailer 10
-
$3,751 USD
View
B
Retailer 11
-
$5,480 USD
View
Most Expensive
B
MOH London
LG425066630 · Oct 29
$5,745 USD
£4,524 GBP
View
11 more retailers have this diamond
Prices start from $1,420 USDSave up to $4,325 USD

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
$1,420 USD