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Marquise|Lab Grown|IGI

0.71ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG805672729

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805672729

Diamond specifications and retailer prices

From $166 USD
HK$1,300 HKD
As of November 1, 2026
Save $254 USD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,173 USD at MOH London · As of October 21, 2026
View at MOH London

About this 0.71ct lab-grown marquise diamond

This 0.71ct lab-grown marquise sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805672729 or 805672729. Listed at 15 retailers as of November 1, 2026, with a 152% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.71
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle29.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805672729
Dimensions9.94 × 4.67 × 2.76 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.94 mm4.67 mm0.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG805672729
Side View
Table 64.0%Crown 29.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.1%

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 1
Current: $1,173 USD|Low: $108 USD|High: $1,193 USD|Avg: $370 USD|-0.4%
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
November 2, 2026
Retailer 14$113 USD
Retailer 12$131 USD
Retailer 4$149 USD
Retailer 11$251 USD
Retailer 5$275 USD
Retailer 9$281 USD
Retailer 3$330 USD
Retailer 2$331 USD
Retailer 10$344 USD
Retailer 6$377 USD
Retailer 8$388 USD
Retailer 7$420 USD
Retailer 13$449 USD
MOH London$1,173 USD

43 data points across 14 retailers

15 retailers$166 USD to $420 USD

Retailer 1
-
$113 USD
Price last confirmed 10 days ago
Retailer 2
-
$131 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$149 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$166 USD
HK$1,300 HKD
View
A
Retailer 5
-
$251 USD
€239 EUR
View
Retailer 6
-
$275 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$281 USD
£221 GBP
View
B+
Retailer 8
-
$330 USD
View
B+
Retailer 9
-
$331 USD
View
Retailer 10
-
$344 USD
£271 GBP
View
Price last confirmed 7 days ago
Retailer 11
-
$377 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$388 USD
SGD 524 SGD
View
B+
Retailer 13
-
$420 USD
View
Retailer 14
-
$449 USD
View
Price last confirmed 8 days ago
Most Expensive
MOH London
LG805672729 · Oct 21
$1,173 USD
£924 GBP
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from $166 USDSave up to $254 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
0.71ct Marquise
$166 USD