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Round|Lab Grown|IGI

5.09ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG771657233

Shape and cutting style on the report: Round brilliant

Certificate IGI LG771657233

Diamond specifications and retailer prices

From $1,278 NZD
$719 USD
As of October 26, 2026
Save $4,481 NZD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,855 NZD at MOH London · As of October 21, 2026
View at MOH London

About this 5.09ct lab-grown round diamond

This 5.09ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG771657233 or 771657233. Listed at 17 retailers as of October 26, 2026, with a 351% 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

5.09
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771657233
Dimensions11.12 × 11.07 × 6.80 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
11.12 mm11.07 mm5.09 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771657233
Side View
Table 57.0%Crown 34.2°Girdle: MediumPavilion 41°Culet: NoneDepth 61.3%

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 26
Current: $5,855 NZD|Low: $1,228 NZD|High: $6,309 NZD|Avg: $2,792 NZD|-0.7%
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 15$1,278 NZD
Retailer 5$1,392 NZD
Retailer 7$1,431 NZD
Retailer 3$1,484 NZD
Retailer 11$1,795 NZD
Retailer 14$2,124 NZD
Retailer 4$2,296 NZD
Retailer 2$2,318 NZD
Retailer 10$2,364 NZD
Retailer 8$3,123 NZD
Retailer 13$3,132 NZD
Retailer 6$4,170 NZD
Retailer 9$4,452 NZD
Retailer 12$5,758 NZD
MOH London$5,855 NZD

42 data points across 15 retailers

17 retailers$1,278 NZD to $5,758 NZD

A
Cheapest Retailer
-
$1,278 NZD
$719 USD
Retailer 2
-
$1,392 NZD
$783 USD
View
Price last confirmed 9 days ago
Retailer 3
-
$1,484 NZD
$835 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$1,795 NZD
$1,010 USD
View
Price last confirmed 5 days ago
B+
Retailer 5
-
$2,124 NZD
$1,195 USD
View
Retailer 6
-
$2,296 NZD
$1,292 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$2,318 NZD
€1,242 EUR
View
B+
Retailer 8
-
$2,364 NZD
£1,047 GBP
View
B
Retailer 9
-
$3,123 NZD
$1,757 USD
View
B
Retailer 10
-
$3,132 NZD
$1,762 USD
View
Retailer 11
-
$3,270 NZD
$1,840 USD
View
Price last confirmed 7 days ago
Retailer 12
-
$4,170 NZD
$2,346 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$4,452 NZD
$2,505 USD
View
Retailer 14
-
$4,832 NZD
$2,719 USD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$5,113 NZD
$2,877 USD
View
B
Retailer 16
-
$5,758 NZD
$3,240 USD
View
Most Expensive
MOH London
LG771657233 · Oct 21
$5,855 NZD
£2,594 GBP
View
Price last confirmed 12 days ago
16 more retailers have this diamond
Prices start from $1,278 NZDSave up to $4,481 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
5.09ct Round
$1,278 NZD