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Marquise|Lab Grown|IGI

1.59ct H IF Marquise Lab Grown Diamond

ID • H/IF • IGI LG635428718

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG635428718

Diamond specifications and retailer prices

From $832 NZD
$467 USD
As of October 27, 2026
Save $3,212 NZD (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,044 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.59ct lab-grown marquise diamond

This 1.59ct lab-grown marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG635428718 or 635428718. Listed at 24 retailers as of October 27, 2026, with prices from $832 to $4,044, a $3,212 spread on the same certified stone. Brilliant Earth lists it at $4,044. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
H
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635428718
Dimensions12.04 × 6.17 × 3.74 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.04 mm6.17 mm1.59 ctH / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635428718
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 60.6%

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: Oct 27
Current: $4,044 NZD|Low: $832 NZD|High: $5,833 NZD|Avg: $2,539 NZD|-0.9%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
October 29, 2026
Retailer 4$832 NZD
Retailer 9$930 NZD
Retailer 12$932 NZD
Retailer 7$1,033 NZD
Retailer 10$1,033 NZD
Retailer 13$1,127 NZD
Retailer 20$1,140 NZD
Retailer 3$1,281 NZD
Retailer 2$1,283 NZD
Retailer 16$1,443 NZD
Retailer 6$1,457 NZD
Retailer 17$1,774 NZD
Retailer 18$1,801 NZD
Retailer 22$2,422 NZD
Retailer 21$2,776 NZD
Retailer 19$3,011 NZD
Retailer 15$3,014 NZD
Retailer 11$3,273 NZD
Retailer 5$3,319 NZD
Retailer 14$3,373 NZD
Retailer 8$3,647 NZD
Retailer 23$3,812 NZD
Brilliant Earth$4,044 NZD

34 data points across 23 retailers

24 retailers$832 NZD to $4,044 NZD

A
Cheapest Retailer
-
$832 NZD
$467 USD
A
Retailer 2
-
$930 NZD
$522 USD
View
Final sale: no returns
A
Retailer 3
-
$932 NZD
$523 USD
View
A
Retailer 4
-
$1,033 NZD
$580 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$1,033 NZD
$580 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$1,127 NZD
£498 GBP
View
A
Retailer 7
-
$1,140 NZD
HK$5,000 HKD
View
B+
Retailer 8
-
$1,281 NZD
$719 USD
View
A
Retailer 9
-
$1,283 NZD
$720 USD
View
A
Retailer 10
-
$1,443 NZD
$810 USD
View
B+
Retailer 11
-
$1,457 NZD
$818 USD
View
B+
Retailer 12
-
$1,774 NZD
ZAR 16,091 ZAR
View
B+
Retailer 13
-
$1,801 NZD
€963 EUR
View
B+
Retailer 14
-
$2,422 NZD
A$2,092 AUD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
$2,776 NZD
$1,558 USD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$2,975 NZD
$1,670 USD
View
B+
Retailer 17
-
$3,011 NZD
$1,690 USD
View
B+
Retailer 18
-
$3,014 NZD
£1,332 GBP
View
Price last confirmed 7 days ago
B+
Retailer 19
-
$3,273 NZD
SGD 2,483 SGD
View
B+
Retailer 20
-
$3,319 NZD
$1,863 USD
View
B+
Retailer 21
-
$3,373 NZD
$1,893 USD
View
B+
Retailer 22
-
$3,647 NZD
$2,047 USD
View
B+
Retailer 23
-
$3,812 NZD
£1,685 GBP
View
Most Expensive
B+
Brilliant Earth
10270002A · Oct 28
$4,044 NZD
$2,270 USD
View
23 more retailers have this diamond
Prices start from $832 NZDSave up to $3,212 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
1.59ct Marquise
$832 NZD