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Round|Lab Grown|IGI

1.87ct G SI2 Round Lab Grown Diamond

EX • G/SI2 • IGI LG476159748

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476159748

Diamond specifications and retailer prices

From $1,189 NZD
£528 GBP
As of October 30, 2026
Save $1,492 NZD (56%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,218 NZD at MOH London · As of October 18, 2026
View at MOH London

About this 1.87ct lab-grown round diamond

This 1.87ct 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 LG476159748 or 476159748. Listed at 12 retailers as of October 30, 2026, with a 125% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.87
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476159748
Dimensions7.80 × 7.77 × 4.93 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
7.80 mm7.77 mm1.87 ctG / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476159748
Side View
Table 58.5%Crown 36.5°Girdle: ThickPavilion 41.2°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,218 NZD|Low: $578 NZD|High: $3,218 NZD|Avg: $1,618 NZD|+25.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 8$578 NZD
Retailer 3$1,189 NZD
Retailer 6$1,198 NZD
Retailer 2$1,476 NZD
Retailer 5$1,490 NZD
Retailer 7$1,639 NZD
Retailer 4$2,177 NZD
Retailer 9$2,681 NZD
MOH London$3,218 NZD

35 data points across 9 retailers

12 retailers$1,189 NZD to $2,681 NZD

Retailer 1
-
$467 NZD
$263 USD
Price last confirmed 39 days ago
Retailer 2
-
$541 NZD
$305 USD
View
Price last confirmed 39 days ago
Retailer 3
-
$571 NZD
$322 USD
View
Price last confirmed 39 days ago
B+
Retailer 4
-
$1,189 NZD
£528 GBP
View
B+
Retailer 5
-
$1,198 NZD
$675 USD
View
B
Retailer 6
-
$1,476 NZD
£655 GBP
View
B
Retailer 7
-
$1,490 NZD
$840 USD
View
B+
Retailer 8
-
$1,639 NZD
$924 USD
View
Retailer 9
-
$2,055 NZD
$1,158 USD
View
Price last confirmed 40 days ago
B
Retailer 10
-
$2,177 NZD
$1,227 USD
View
B
Retailer 11
-
$2,681 NZD
$1,511 USD
View
Most Expensive
MOH London
LG476159748 · Oct 18
$3,218 NZD
£1,428 GBP
View
Price last confirmed 13 days ago
11 more retailers have this diamond
Prices start from $1,189 NZDSave up to $1,492 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+
1.87ct Round
$1,189 NZD