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Round|Lab Grown|IGI

1.71ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG451057246

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057246

Diamond specifications and retailer prices

From $1,260 USD
As of October 29, 2026
Save $3,735 USD (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,995 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG451057246 or 451057246. Listed at 13 retailers as of October 29, 2026, with prices from $1,260 to $4,995, a $3,735 spread on the same certified stone. MOH London lists it at $4,995. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
J
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057246
Dimensions7.64 × 7.66 × 4.69 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
7.64 mm7.66 mm1.71 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057246
Side View
Table 59.5%Crown 35.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.3%

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 29
Current: $4,995 USD|Low: $1,200 USD|High: $5,028 USD|Avg: $2,488 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
Retailer 14
Retailer 15
October 29, 2026
Retailer 9$1,260 USD
Retailer 12$1,500 USD
Retailer 3$1,632 USD
Retailer 15$1,680 USD
Retailer 5$1,740 USD
Retailer 13$1,740 USD
Retailer 11$1,910 USD
Retailer 6$2,362 USD
Retailer 8$2,602 USD
Retailer 14$2,742 USD
Retailer 10$3,076 USD
Retailer 2$3,198 USD
Retailer 4$3,261 USD
Retailer 7$3,892 USD
MOH London$4,995 USD

26 data points across 15 retailers

13 retailers$1,260 USD to $4,995 USD

A
Cheapest Retailer
-
$1,260 USD
A
Retailer 2
-
$1,500 USD
View
B+
Retailer 3
-
$1,632 USD
View
B+
Retailer 4
-
$1,680 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,740 USD
View
B+
Retailer 6
-
$1,740 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$1,910 USD
View
B+
Retailer 8
-
$2,602 USD
£2,049 GBP
View
B
Retailer 9
-
$2,742 USD
View
B
Retailer 10
-
$3,076 USD
View
B
Retailer 11
-
$3,198 USD
ZAR 51,664 ZAR
View
B
Retailer 12
-
$3,261 USD
View
Most Expensive
B
MOH London
LG451057246 · Oct 29
$4,995 USD
£3,933 GBP
View
12 more retailers have this diamond
Prices start from $1,260 USDSave up to $3,735 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
1.71ct Round
$1,260 USD