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Marquise|Lab Grown|IGI

1.85ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG778690171

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778690171

Diamond specifications and retailer prices

From $518 NZD
$292 USD
As of October 30, 2026
Save $2,610 NZD (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,128 NZD at Frank Darling · As of October 31, 2026
View at Frank Darling

About this 1.85ct lab-grown marquise diamond

This 1.85ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778690171 or 778690171. Listed at 6 retailers as of October 30, 2026, with prices from $518 to $3,128, a $2,610 spread on the same certified stone. Frank Darling lists it at $3,128. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.85
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778690171
Dimensions13.20 × 6.31 × 3.97 mm
L/W Ratio2.09
Girdle conditionFaceted
Culet sizePointed
Top View
13.20 mm6.31 mm1.85 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778690171
Side View
Table 56.0%Crown 34.7°Girdle: ThinPavilion 40.4°Culet: NoneDepth 62.9%

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 30
Current: $3,128 NZD|Low: $318 NZD|High: $3,128 NZD|Avg: $1,440 NZD|-0.0%
Frank Darling
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 30, 2026
Retailer 5$318 NZD
Retailer 8$518 NZD
Retailer 9$766 NZD
Retailer 14$940 NZD
Retailer 13$956 NZD
Retailer 12$1,031 NZD
Retailer 11$1,055 NZD
Retailer 4$1,304 NZD
Retailer 7$1,479 NZD
Retailer 6$1,613 NZD
Retailer 15$1,949 NZD
Retailer 2$2,042 NZD
Retailer 10$2,395 NZD
Retailer 3$2,473 NZD
Frank Darling$3,128 NZD

12 data points across 15 retailers

6 retailers$518 NZD to $3,128 NZD

A
Cheapest Retailer
-
$518 NZD
$292 USD
Final sale: no returns
B+
Retailer 2
-
$766 NZD
$432 USD
View
Retailer 3
-
$1,479 NZD
A$1,283 AUD
View
Price last confirmed 121 days ago
B+
Retailer 4
-
$2,042 NZD
$1,151 USD
View
B
Retailer 5
-
$2,395 NZD
$1,350 USD
View
Most Expensive
B
Frank Darling
100752819164KD · Oct 31
$3,128 NZD
$1,763 USD
View
5 more retailers have this diamond
Prices start from $518 NZDSave up to $2,610 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.

A
1.85ct Marquise
$518 NZD