Round|Lab Grown|IGI

1.70ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG814634352

Shape and cutting style on the report: Round brilliant

Certificate IGI LG814634352

Diamond specifications and retailer prices

From $551 NZD
$310 USD
As of November 1, 2026
Save $1,226 NZD (69%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,035 NZD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.7ct lab-grown round diamond

This 1.7ct 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 LG814634352 or 814634352. Listed at 20 retailers as of November 1, 2026, with a 223% 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

1.70
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814634352
Dimensions7.64 × 7.59 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.64 mm7.59 mm1.70 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG814634352
Side View
Table 62.0%Crown 35.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.1%

Caratlytics Score

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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: Nov 1
Current: $689 NZD|Low: $355 NZD|High: $2,386 NZD|Avg: $1,212 NZD|-24.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
November 2, 2026
Retailer 9$366 NZD
Retailer 2$551 NZD
Retailer 1$689 NZD
Retailer 5$732 NZD
Retailer 4$997 NZD
Retailer 8$1,002 NZD
Retailer 7$1,013 NZD
Retailer 10$1,405 NZD
Retailer 11$1,466 NZD
Retailer 3$1,777 NZD
Retailer 6$1,905 NZD
Reve Diamonds$2,035 NZD

36 data points across 12 retailers

20 retailers$551 NZD to $1,777 NZD

Retailer 1
-
$352 NZD
$198 USD
Price last confirmed 23 days ago
Retailer 2
-
$435 NZD
$245 USD
View
Price last confirmed 31 days ago
Retailer 3
-
$439 NZD
$247 USD
View
Price last confirmed 41 days ago
Retailer 4
-
$508 NZD
$286 USD
View
Price last confirmed 41 days ago
Retailer 5
-
$537 NZD
$302 USD
View
Price last confirmed 42 days ago
B+
Retailer 6
-
$551 NZD
$310 USD
View
A
Retailer 7
-
$689 NZD
€369 EUR
View
A
Retailer 8
-
$732 NZD
£324 GBP
View
B+
Retailer 9
-
$970 NZD
$546 USD
View
B+
Retailer 10
-
$997 NZD
$561 USD
View
B+
Retailer 11
-
$1,002 NZD
$564 USD
View
Retailer 12
-
$1,013 NZD
$570 USD
View
Price last confirmed 7 days ago
Retailer 13
-
$1,399 NZD
$787 USD
View
Price last confirmed 26 days ago
B
Retailer 14
-
$1,405 NZD
$790 USD
View
Price last confirmed 7 days ago
Retailer 15
-
$1,466 NZD
$825 USD
View
Price last confirmed 12 days ago
Retailer 16
-
$1,747 NZD
$983 USD
View
Price last confirmed 43 days ago
B
Retailer 17
-
$1,777 NZD
$1,000 USD
View
Retailer 18
-
$1,831 NZD
$1,030 USD
View
Price last confirmed 34 days ago
Retailer 19
-
$1,905 NZD
£844 GBP
View
Price last confirmed 7 days ago
Most Expensive
Reve Diamonds
0A7E478AC · Oct 25
$2,035 NZD
$1,145 USD
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from $551 NZDSave up to $1,226 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
1.70ct Round
$551 NZD