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Round|Lab Grown|IGI

1.60ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG490175103

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490175103

Diamond specifications and retailer prices

From $1,597 NZD
$900 USD
As of October 30, 2026
Save $7,097 NZD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,693 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.6ct lab-grown round diamond

This 1.6ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490175103 or 490175103. Listed at 11 retailers as of October 29, 2026, with prices from $1,597 to $8,693, a $7,097 spread on the same certified stone. MOH London lists it at $8,693. 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

1.60
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490175103
Dimensions7.69 × 7.63 × 4.51 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.69 mm7.63 mm1.60 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490175103
Side View
Table 59.0%Crown 33.1°Girdle: MediumPavilion 40.3°Culet: NoneDepth 59.0%

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: $8,693 NZD|Low: $1,597 NZD|High: $8,763 NZD|Avg: $3,835 NZD|-0.5%
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
October 30, 2026
Retailer 2$1,597 NZD
Retailer 8$2,321 NZD
Retailer 11$2,525 NZD
Retailer 13$2,598 NZD
Retailer 9$2,692 NZD
Retailer 14$2,692 NZD
Retailer 5$3,106 NZD
Retailer 7$3,373 NZD
Retailer 4$3,714 NZD
Retailer 10$4,257 NZD
Retailer 3$5,016 NZD
Retailer 12$5,044 NZD
Retailer 6$6,025 NZD
MOH London$8,693 NZD

37 data points across 14 retailers

11 retailers$1,597 NZD to $8,693 NZD

A
Cheapest Retailer
-
$1,597 NZD
$900 USD
B+
Retailer 2
-
$2,321 NZD
$1,308 USD
View
B+
Retailer 3
-
$2,525 NZD
$1,423 USD
View
B+
Retailer 4
-
$2,598 NZD
$1,464 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,692 NZD
$1,517 USD
View
Retailer 6
-
$2,692 NZD
$1,517 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$3,373 NZD
£1,497 GBP
View
B
Retailer 8
-
$4,257 NZD
$2,399 USD
View
B
Retailer 9
-
$5,016 NZD
$2,827 USD
View
B
Retailer 10
-
$5,044 NZD
$2,843 USD
View
Most Expensive
B
MOH London
LG490175103 · Oct 29
$8,693 NZD
£3,858 GBP
View
10 more retailers have this diamond
Prices start from $1,597 NZDSave up to $7,097 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
1.60ct Round
$1,597 NZD