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Marquise|Lab Grown|IGI

1.70ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG502155355

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG502155355

Diamond specifications and retailer prices

From $2,454 NZD
$1,380 USD
As of November 3, 2026
Save $2,818 NZD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,763 NZD at Loose Grown Diamond · As of November 1, 2026
View at Loose Grown Diamond

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 very-good cut grade and certified by IGI LG502155355 or 502155355. Listed at 16 retailers as of November 3, 2026, with a 115% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.4°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG502155355
Dimensions12.41 × 6.27 × 3.58 mm
L/W Ratio1.98
Girdle conditionFaceted
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
12.41 mm6.27 mm1.70 ctG / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG502155355
Side View
Table 59.5%Crown 37.4°Girdle: MED-STKPavilion 36°Culet: NoneDepth 57.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $7,763 NZD|Low: $2,454 NZD|High: $13,510 NZD|Avg: $7,458 NZD|+0.6%
Loose Grown Diamond
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 3, 2026
Retailer 8$2,454 NZD
Retailer 10$4,292 NZD
Retailer 3$4,671 NZD
Retailer 4$4,806 NZD
Retailer 11$4,978 NZD
Retailer 13$6,844 NZD
Retailer 6$6,858 NZD
Retailer 9$7,464 NZD
Loose Grown Diamond$7,763 NZD
Retailer 2$9,182 NZD
Retailer 5$9,457 NZD
Retailer 12$13,294 NZD
Retailer 7$13,332 NZD

44 data points across 13 retailers

16 retailers$2,454 NZD to $5,272 NZD

B
Cheapest Retailer
-
$2,454 NZD
$1,380 USD
B
Retailer 2
-
$4,292 NZD
$2,414 USD
View
B
Retailer 3
-
$4,671 NZD
$2,627 USD
View
B
Retailer 4
-
$4,806 NZD
$2,703 USD
View
Final sale: no returns
Retailer 5
-
$4,978 NZD
$2,800 USD
View
Price last confirmed 21 days ago
B
Retailer 6
-
$4,978 NZD
$2,800 USD
View
B
Retailer 7
-
$5,272 NZD
$2,965 USD
View
Retailer 8
-
$6,844 NZD
$3,849 USD
View
Price under review
Retailer 9
-
$6,858 NZD
£3,037 GBP
View
Price under review
Retailer 10
-
$7,464 NZD
$4,198 USD
View
Price under review
Most Expensive
Loose Grown Diamond
502155355 · Nov 1
$7,763 NZD
$4,366 USD
View
Price under review
10 more retailers have this diamond
Prices start from $2,454 NZDSave up to $2,818 NZD

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.

B
1.70ct Marquise
$2,454 NZD