Marquise|Lab Grown|IGI

1.70ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG845669358

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845669358

Diamond specifications and retailer prices

From €309 EUR
HK$2,700 HKD
As of November 1, 2026
Save €997 EUR (76%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,307 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.7ct lab-grown marquise diamond

This 1.7ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG845669358 or 845669358. Listed at 23 retailers as of October 31, 2026, with prices from €309 to €1,307, a €997 spread on the same certified stone. Brilliant Earth lists it at €1,307. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845669358
Dimensions12.26 × 5.96 × 3.87 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.26 mm5.96 mm1.70 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845669358
Side View
Table 59.0%Crown 36.2°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 64.9%

Caratlytics Score

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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: €1,307 EUR|Low: €225 EUR|High: €1,307 EUR|Avg: €643 EUR
Brilliant Earth
Retailer 2
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Retailer 24
October 31, 2026
Retailer 7€225 EUR
Retailer 10€252 EUR
Retailer 14€260 EUR
Retailer 5€279 EUR
Retailer 16€309 EUR
Retailer 18€327 EUR
Retailer 6€421 EUR
Retailer 21€444 EUR
Retailer 11€467 EUR
Retailer 23€472 EUR
Retailer 8€522 EUR
Retailer 19€528 EUR
Retailer 9€533 EUR
Retailer 22€655 EUR
Retailer 2€708 EUR
Retailer 3€897 EUR
Retailer 12€900 EUR
Retailer 17€943 EUR
Retailer 13€1,065 EUR
Retailer 4€1,097 EUR
Retailer 20€1,120 EUR
Retailer 15€1,147 EUR
Retailer 24€1,215 EUR
Brilliant Earth€1,307 EUR

12 data points across 24 retailers

23 retailers€309 EUR to €1,307 EUR

Retailer 1
-
€225 EUR
$251 USD
Price last confirmed 9 days ago
Retailer 2
-
€260 EUR
$291 USD
View
Price last confirmed 8 days ago
Retailer 3
-
€279 EUR
$312 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
€309 EUR
HK$2,700 HKD
View
A
Retailer 5
-
€327 EUR
£288 GBP
View
Retailer 6
-
€421 EUR
$470 USD
View
Price last confirmed 5 days ago
A
Retailer 7
-
€444 EUR
View
Retailer 8
-
€467 EUR
$522 USD
View
Price last confirmed 7 days ago
Retailer 9
-
€472 EUR
ZAR 8,513 ZAR
View
Price last confirmed 9 days ago
A
Retailer 10
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€522 EUR
$583 USD
View
A
Retailer 11
-
€528 EUR
£464 GBP
View
A
Retailer 12
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€533 EUR
$596 USD
View
Retailer 13
-
€655 EUR
A$1,125 AUD
View
Price last confirmed 8 days ago
A
Retailer 14
-
€708 EUR
$791 USD
View
Retailer 15
-
€897 EUR
$1,002 USD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
€900 EUR
SGD 1,359 SGD
View
B+
Retailer 17
-
€943 EUR
$1,053 USD
View
B
Retailer 18
-
€1,065 EUR
$1,190 USD
View
B+
Retailer 19
-
€1,097 EUR
$1,226 USD
View
B+
Retailer 20
-
€1,120 EUR
£985 GBP
View
B
Retailer 21
-
€1,147 EUR
$1,281 USD
View
Retailer 22
-
€1,215 EUR
$1,357 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
22219208A · Oct 31
€1,307 EUR
$1,460 USD
View
22 more retailers have this diamond
Prices start from €309 EURSave up to €997 EUR

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
1.70ct Marquise
€309 EUR