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Oval|Lab Grown|IGI

1.71ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG492136784

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG492136784

Diamond specifications and retailer prices

From $1,070 USD
As of November 6, 2026
Save $4,324 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,394 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.71ct lab-grown oval diamond

This 1.71ct lab-grown oval 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 LG492136784 or 492136784. Listed at 10 retailers as of November 1, 2026, with prices from $1,070 to $5,394, a $4,324 spread on the same certified stone. MOH London lists it at $5,394. 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

1.71
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136784
Dimensions9.72 × 6.66 × 4.18 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.72 mm6.66 mm1.71 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136784
Side View
Table 56.0%Crown 33.5°Girdle: MED-THKPavilion 41.7°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
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: Nov 6
Current: $5,394 USD|Low: $1,070 USD|High: $5,466 USD|Avg: $2,604 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4$1,070 USD
Retailer 3$1,628 USD
Retailer 9$1,832 USD
Retailer 5$1,889 USD
Retailer 7$2,060 USD
Retailer 8$2,539 USD
Retailer 6$2,968 USD
Retailer 2$3,256 USD
MOH London$5,394 USD

14 data points across 9 retailers

10 retailers$1,070 USD to $5,394 USD

A
Cheapest Retailer
-
$1,070 USD
B+
Retailer 2
-
$1,628 USD
View
B+
Retailer 3
-
$1,771 USD
View
B+
Retailer 4
-
$1,889 USD
View
Retailer 5
-
$1,889 USD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$2,060 USD
View
B
Retailer 7
-
$2,968 USD
View
B
Retailer 8
-
$3,256 USD
View
B
Retailer 9
-
$3,540 USD
View
Most Expensive
B
MOH London
LG492136784 · Nov 1
$5,394 USD
£4,247 GBP
View
9 more retailers have this diamond
Prices start from $1,070 USDSave up to $4,324 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 Oval
$1,070 USD