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1.85ct G SI2 Round Lab Grown Diamond

EX • G/SI2 • IGI LG582386137

Shape and cutting style on the report: Round brilliant

Certificate IGI LG582386137

Diamond specifications and retailer prices

From $337 NZD
$190 USD
As of October 29, 2026
Save $2,182 NZD (87%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,520 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.85ct lab-grown round diamond

This 1.85ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG582386137 or 582386137. Listed at 9 retailers as of October 29, 2026, with prices from $337 to $2,520, a $2,182 spread on the same certified stone. Brilliant Earth lists it at $2,520. 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

1.85
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG582386137
Dimensions7.96 × 7.93 × 4.74 mm
L/W Ratio1.00
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
7.96 mm7.93 mm1.85 ctG / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG582386137
Side View
Table 61.0%Crown 32.3°Girdle: M-MPavilion 40.9°Culet: NoneDepth 59.7%

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 29
Current: $2,520 NZD|Low: $337 NZD|High: $2,590 NZD|Avg: $1,275 NZD|-2.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 7$337 NZD
Retailer 5$390 NZD
Retailer 11$401 NZD
Retailer 9$733 NZD
Retailer 4$937 NZD
Retailer 12$1,078 NZD
Retailer 10$1,306 NZD
Retailer 6$1,347 NZD
Retailer 8$1,482 NZD
Retailer 3$1,769 NZD
Retailer 2$1,857 NZD
Brilliant Earth$2,520 NZD

21 data points across 12 retailers

9 retailers$337 NZD to $2,520 NZD

A
Cheapest Retailer
-
$337 NZD
$190 USD
A
Retailer 2
-
$390 NZD
$220 USD
View
A
Retailer 3
-
$401 NZD
$226 USD
View
Final sale: no returns
B+
Retailer 4
-
$733 NZD
$413 USD
View
B+
Retailer 5
-
$1,306 NZD
$736 USD
View
B
Retailer 6
-
$1,347 NZD
$759 USD
View
B
Retailer 7
-
$1,482 NZD
$835 USD
View
B
Retailer 8
-
$1,857 NZD
£824 GBP
View
Most Expensive
B
Brilliant Earth
7436246Y · Oct 29
$2,520 NZD
$1,420 USD
View
8 more retailers have this diamond
Prices start from $337 NZDSave up to $2,182 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 Round
$337 NZD