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Round|Lab Grown|IGI

1.72ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG787640381

Certificate IGI LG787640381

Diamond specifications and retailer prices

From $1,114 USD
As of October 29, 2026
Save $1,076 USD (49%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,190 USD at Jared · As of October 28, 2026
View at Jared

About this 1.72ct lab-grown round diamond

This 1.72ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG787640381 or 787640381. Listed at 4 retailers as of October 28, 2026, with prices from $1,114 to $2,190, a $1,076 spread on the same certified stone. Jared lists it at $2,190. 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

1.72
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG787640381
Dimensions7.70 × 7.74 × 4.67 mm
L/W Ratio1.01
Top View
7.70 mm7.74 mm1.72 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787640381
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 60.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $2,190 USD|Low: $1,114 USD|High: $2,190 USD|Avg: $1,748 USD
Jared
Retailer 2
Retailer 3
Retailer 4
September 26, 2026
Retailer 2$1,114 USD
Retailer 3$1,520 USD
Retailer 4$1,520 USD
Jared$2,190 USD

6 data points across 4 retailers

4 retailers$1,114 USD to $2,190 USD

B
Cheapest Retailer
-
$1,114 USD
B
Retailer 2
-
$1,520 USD
View
B
Retailer 3
-
$1,520 USD
View
Most Expensive
B
Jared
158608383 · Oct 28
$2,190 USD
View
3 more retailers have this diamond
Prices start from $1,114 USDSave up to $1,076 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.

B
1.72ct Round
$1,114 USD