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Round|Lab Grown|IGI

1.88ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG783646812

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783646812

Diamond specifications and retailer prices

From $519 NZD
$292 USD
As of October 27, 2026
Save $1,240 NZD (70%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,054 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.88ct lab-grown round diamond

This 1.88ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783646812 or 783646812. Listed at 17 retailers as of October 27, 2026, with a 239% 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

1.88
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783646812
Dimensions7.92 × 7.90 × 4.87 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.92 mm7.90 mm1.88 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783646812
Side View
Table 56.0%Crown 33.8°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 61.6%

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: $2,054 NZD|Low: $396 NZD|High: $2,077 NZD|Avg: $1,051 NZD|+0.1%
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
Retailer 15
November 2, 2026
Retailer 4$412 NZD
Retailer 14$485 NZD
Retailer 7$512 NZD
Retailer 13$519 NZD
Retailer 2$866 NZD
Retailer 9$876 NZD
Retailer 10$928 NZD
Retailer 11$971 NZD
Retailer 6$986 NZD
Retailer 8$1,194 NZD
Retailer 3$1,354 NZD
Retailer 12$1,667 NZD
Retailer 15$1,759 NZD
Retailer 5$1,955 NZD
MOH London$2,054 NZD

42 data points across 15 retailers

17 retailers$519 NZD to $1,759 NZD

Retailer 1
-
$412 NZD
$232 USD
Price last confirmed 8 days ago
Retailer 2
-
$485 NZD
$273 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$512 NZD
$288 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$519 NZD
$292 USD
View
A
Retailer 5
-
$866 NZD
€464 EUR
View
B+
Retailer 6
-
$876 NZD
$493 USD
View
A
Retailer 7
-
$928 NZD
£411 GBP
View
A
Retailer 8
-
$971 NZD
£430 GBP
View
Retailer 9
-
$986 NZD
$555 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$1,194 NZD
$672 USD
View
Retailer 11
-
$1,354 NZD
$762 USD
View
Price last confirmed 8 days ago
Retailer 12
-
$1,502 NZD
$845 USD
View
Price last confirmed 48 days ago
Retailer 13
-
$1,600 NZD
$900 USD
View
Price last confirmed 16 days ago
B
Retailer 14
-
$1,667 NZD
$938 USD
View
B+
Retailer 15
-
$1,759 NZD
$990 USD
View
Retailer 16
-
$1,955 NZD
$1,100 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
LG783646812 · Oct 26
$2,054 NZD
£910 GBP
View
Price last confirmed 7 days ago
16 more retailers have this diamond
Prices start from $519 NZDSave up to $1,240 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
1.88ct Round
$519 NZD