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Round|Lab Grown|IGI

1.91ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG630443173

Shape and cutting style on the report: Round brilliant

Certificate IGI LG630443173

Diamond specifications and retailer prices

From $594 NZD
$335 USD
As of November 1, 2026
Save $2,042 NZD (77%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $4,347 NZD at Brilliant Earth · As of October 4, 2026
View at Brilliant Earth

About this 1.91ct lab-grown round diamond

This 1.91ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG630443173 or 630443173. Listed at 26 retailers as of November 1, 2026, with a 344% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG630443173
Dimensions7.89 × 7.95 × 4.93 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.89 mm7.95 mm1.91 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG630443173
Side View
Table 56.0%Crown 35.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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: Nov 1
Current: $4,347 NZD|Low: $520 NZD|High: $4,347 NZD|Avg: $1,602 NZD
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 10$541 NZD
Retailer 4$594 NZD
Retailer 12$671 NZD
Retailer 5$727 NZD
Retailer 21$884 NZD
Retailer 17$887 NZD
Retailer 16$1,073 NZD
Retailer 2$1,134 NZD
Retailer 3$1,146 NZD
Retailer 13$1,164 NZD
Retailer 18$1,209 NZD
Retailer 6$1,242 NZD
Retailer 19$1,529 NZD
Retailer 20$1,694 NZD
Retailer 8$2,105 NZD
Retailer 11$2,147 NZD
Retailer 14$2,195 NZD
Retailer 7$2,199 NZD
Retailer 9$2,530 NZD
Retailer 15$2,636 NZD
Brilliant Earth$4,347 NZD

39 data points across 21 retailers

26 retailers$594 NZD to $2,636 NZD

Retailer 1
-
$541 NZD
$305 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$594 NZD
$335 USD
View
Final sale: no returns
Retailer 3
-
$628 NZD
$354 USD
View
Price last confirmed 13 days ago
Retailer 4
-
$664 NZD
$374 USD
View
Price last confirmed 47 days ago
Retailer 5
-
$671 NZD
$378 USD
View
Price last confirmed 16 days ago
Retailer 6
-
$671 NZD
$378 USD
View
Price last confirmed 14 days ago
A
Retailer 7
-
$727 NZD
HK$3,200 HKD
View
B+
Retailer 8
-
$884 NZD
$498 USD
View
A
Retailer 9
-
$887 NZD
$500 USD
View
A
Retailer 10
-
$1,073 NZD
€576 EUR
View
A
Retailer 11
-
$1,134 NZD
ZAR 10,325 ZAR
View
A
Retailer 12
-
$1,146 NZD
$646 USD
View
A
Retailer 13
-
$1,164 NZD
£516 GBP
View
A
Retailer 14
-
$1,209 NZD
A$1,048 AUD
View
B+
Retailer 15
-
$1,242 NZD
$700 USD
View
B+
Retailer 16
-
$1,529 NZD
A$1,326 AUD
View
B+
Retailer 17
-
$1,694 NZD
$955 USD
View
B
Retailer 18
-
$2,105 NZD
SGD 1,603 SGD
View
Retailer 19
-
$2,147 NZD
$1,210 USD
View
Price last confirmed 25 days ago
Retailer 20
-
$2,158 NZD
$1,216 USD
View
Price last confirmed 15 days ago
Retailer 21
-
$2,195 NZD
A$1,903 AUD
View
Price last confirmed 27 days ago
B
Retailer 22
-
$2,199 NZD
$1,239 USD
View
B
Retailer 23
-
$2,312 NZD
$1,303 USD
View
B
Retailer 24
-
$2,530 NZD
$1,426 USD
View
B
Retailer 25
-
$2,636 NZD
£1,170 GBP
View
Most Expensive
Brilliant Earth
9989183A · Oct 4
$4,347 NZD
$2,450 USD
View
Price last confirmed 28 days ago
25 more retailers have this diamond
Prices start from $594 NZDSave up to $2,042 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
1.91ct Round
$594 NZD