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Round|Lab Grown|GIA

1.65ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 6455007501

Certificate GIA 6455007501

Diamond specifications and retailer prices

From €376 EUR
$420 USD
As of November 1, 2026
Save €1,337 EUR (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,713 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.65ct lab-grown round diamond

This 1.65ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6455007501. Listed at 16 retailers as of November 1, 2026, with prices from €376 to €1,713, a €1,337 spread on the same certified stone. MOH London lists it at €1,713. 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

1.65
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41°
OriginLab Grown
Grading LabGIA
CertificateGIA 6455007501
Dimensions7.60 × 7.55 × 4.64 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.60 mm7.55 mm1.65 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6455007501
Side View
Table 59.0%Crown 33.5°Girdle: NUL-NULPavilion 41°Culet: NoneDepth 61.3%

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: Nov 1
Current: €1,713 EUR|Low: €361 EUR|High: €1,734 EUR|Avg: €865 EUR
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
November 1, 2026
Retailer 11€376 EUR
Retailer 4€421 EUR
Retailer 13€466 EUR
Retailer 10€595 EUR
Retailer 6€631 EUR
Retailer 3€687 EUR
Retailer 7€698 EUR
Retailer 2€727 EUR
Retailer 8€748 EUR
Retailer 14€846 EUR
Retailer 9€1,068 EUR
Retailer 5€1,498 EUR
Retailer 12€1,593 EUR
MOH London€1,713 EUR

42 data points across 14 retailers

16 retailers€376 EUR to €1,713 EUR

A
Cheapest Retailer
-
€376 EUR
$420 USD
A
Retailer 2
-
€421 EUR
$470 USD
View
Retailer 3
-
€466 EUR
$521 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
€466 EUR
$521 USD
View
A
Retailer 5
-
€516 EUR
HK$4,500 HKD
View
B+
Retailer 6
-
€595 EUR
$665 USD
View
B+
Retailer 7
-
€598 EUR
$668 USD
View
B+
Retailer 8
-
€631 EUR
$705 USD
View
B+
Retailer 9
-
€687 EUR
$767 USD
View
B+
Retailer 10
-
€698 EUR
£614 GBP
View
B+
Retailer 11
-
€727 EUR
£639 GBP
View
B+
Retailer 12
-
€748 EUR
View
B
Retailer 13
-
€1,068 EUR
$1,193 USD
View
B
Retailer 14
-
€1,498 EUR
$1,674 USD
View
B
Retailer 15
-
€1,593 EUR
$1,780 USD
View
Most Expensive
B
MOH London
6455007501 · Nov 1
€1,713 EUR
£1,507 GBP
View
15 more retailers have this diamond
Prices start from €376 EURSave up to €1,337 EUR

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
1.65ct Round
€376 EUR