CaratHunter
Plans
Round|Lab Grown|IGI

1.72ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG447099879

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099879

Diamond specifications and retailer prices

From $970 USD
As of October 31, 2026
Save $4,003 USD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,973 USD at MOH London · As of October 29, 2026
View at MOH London

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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099879 or 447099879. Listed at 12 retailers as of October 29, 2026, with prices from $970 to $4,973, a $4,003 spread on the same certified stone. MOH London lists it at $4,973. 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
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099879
Dimensions7.59 × 7.62 × 4.78 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.59 mm7.62 mm1.72 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099879
Side View
Table 58.5%Crown 35.4°GirdlePavilion 41.3°Culet: NoneDepth 62.8%

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 31
Current: $4,973 USD|Low: $970 USD|High: $5,013 USD|Avg: $2,115 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
Retailer 13
November 1, 2026
Retailer 6$970 USD
Retailer 7$1,327 USD
Retailer 11$1,444 USD
Retailer 10$1,487 USD
Retailer 8$1,540 USD
Retailer 13$1,540 USD
Retailer 3$1,710 USD
Retailer 2$2,015 USD
Retailer 5$2,124 USD
Retailer 9$2,435 USD
Retailer 4$2,870 USD
Retailer 12$2,886 USD
MOH London$4,973 USD

25 data points across 13 retailers

12 retailers$970 USD to $4,973 USD

A
Cheapest Retailer
-
$970 USD
B+
Retailer 2
-
$1,327 USD
View
B+
Retailer 3
-
$1,444 USD
View
B+
Retailer 4
-
$1,487 USD
View
Final sale: no returns
Retailer 5
-
$1,540 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$1,540 USD
View
B+
Retailer 7
-
$1,710 USD
View
B+
Retailer 8
-
$2,015 USD
£1,587 GBP
View
B
Retailer 9
-
$2,435 USD
View
B
Retailer 10
-
$2,870 USD
View
B
Retailer 11
-
$2,886 USD
View
Most Expensive
B
MOH London
LG447099879 · Oct 29
$4,973 USD
£3,916 GBP
View
11 more retailers have this diamond
Prices start from $970 USDSave up to $4,003 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
1.72ct Round
$970 USD